CN112002455B - Monochromator for manually adjusting focusing radius - Google Patents
Monochromator for manually adjusting focusing radius Download PDFInfo
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- CN112002455B CN112002455B CN202010864975.4A CN202010864975A CN112002455B CN 112002455 B CN112002455 B CN 112002455B CN 202010864975 A CN202010864975 A CN 202010864975A CN 112002455 B CN112002455 B CN 112002455B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/06—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators
- G21K1/062—Devices having a multilayer structure
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/06—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators
- G21K1/067—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators using surface reflection, e.g. grazing incidence mirrors, gratings
Abstract
The invention provides a monochromator for manually adjusting the focusing radius, which comprises a first mounting plate, a second mounting plate, a concave fixing column, a convex pressing column, a reflecting sheet and a driving mechanism, wherein the concave fixing column is fixed on the first mounting plate; the plurality of reflection sheets are sequentially arranged between the two concave fixing columns and the two convex compression columns along the width direction of the reflection sheets; the driving mechanism is arranged on the first mounting plate and the second mounting plate; the driving mechanism can drive the two convex compression posts to be close to or far away from the two concave fixing posts, and then the reflection sheets are driven to deform according to a preset structure. The monochromator has the advantages of reasonable structural design, convenience in manual adjustment, fixed longitudinal curvature and adjustable horizontal curvature.
Description
Technical Field
The invention belongs to the technical field of neutron scattering experiments, and particularly relates to a monochromator for manually adjusting the focusing radius.
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 problems, the invention provides the monochromator for manually adjusting the focusing radius, which has the characteristics of reasonable structural design, convenient manual adjustment, fixed longitudinal curvature and adjustable horizontal curvature.
The invention aims to realize the technical scheme that the monochromator for manually adjusting the focusing radius comprises a first mounting plate, a second mounting plate, a concave fixing column, a convex pressing column, a reflecting sheet and a driving mechanism, wherein the concave fixing column is arranged on the first mounting plate;
the first mounting plate and the second mounting plate are oppositely arranged;
the concave fixing columns are of columnar structures, the cylindrical surfaces of the concave fixing columns are gradually recessed from two ends to the middle, the number of the concave fixing columns is two, the two concave fixing columns are vertically and fixedly installed between the first installation plate and the second installation plate, the axes of the two concave fixing columns are parallel, and a preset distance is reserved between the two concave fixing columns;
the convex compression posts are of a columnar structure, the cylindrical surfaces of the convex compression posts gradually protrude from two ends to the middle, the number of the convex compression posts is two, the convex compression posts are vertically arranged between the first mounting plate and the second mounting plate through the driving mechanism, the axes of the two convex compression posts are parallel, and the distance between the two convex compression posts is smaller than the distance between the two concave fixing posts;
the plane where the axes of the two concave fixing columns are located is parallel to the plane where the axes of the two convex pressing columns are located, and the distance between the two parallel planes is matched with the thickness of the reflector plate;
the reflecting sheets are of strip-shaped sheet structures and are sequentially arranged between the two concave fixing columns and the two convex pressing columns along the width direction of the reflecting sheets;
the driving mechanism is arranged on the first mounting plate and the second mounting plate; the driving mechanism can drive the two convex compression posts to be close to or far away from the two concave fixing posts, and then the reflection sheets are driven to deform according to a preset structure.
On the basis of the technical scheme, the invention can also have the following further improvement scheme.
Further, the female fixation post has a generatrix curvature that is the same as the generatrix curvature of the male compression post.
Further, the lowest concave part of the concave fixing column is arranged corresponding to the highest convex part of the convex compression column.
Furthermore, the concave fixing column and the convex compression column are made of steel, and an annular tool withdrawal groove is formed in the concave fixing column and the convex compression column at intervals of one width of the reflection sheet.
Further, the driving mechanism comprises a third mounting plate, a fourth mounting plate, a fifth mounting plate, a sixth mounting plate and a driving execution assembly;
the third mounting plate, the fourth mounting plate, the fifth mounting plate and the sixth mounting plate are all mounted between the first mounting plate and the second mounting plate;
the third mounting plate and the fifth mounting plate are hinged with the first mounting plate;
the fourth mounting plate and the sixth mounting plate are hinged with the second mounting plate;
one of the two convex compression posts is fixedly arranged between the third mounting plate and the fourth mounting plate, and the other one of the two convex compression posts is fixedly arranged between the fifth mounting plate and the sixth mounting plate;
the drive executive component is in drive connection with the third mounting plate, the fourth mounting plate, the fifth mounting plate and the sixth mounting plate, and through adjustment of the drive executive component, the drive executive component can drive the third mounting plate, the fourth mounting plate, the fifth mounting plate and the sixth mounting plate to rotate around respective hinge axes and drive the two convex compression columns to be close to or far away from the concave fixing columns.
Further, the third mounting panel with between the fourth mounting panel and the fifth mounting panel with all install the reinforcing plate between the sixth mounting panel, fixed connection tractive board on the reinforcing plate, tractive board respectively with two the convex compression leg cup joints or the joint.
Further, the drive executing assemblies are two groups, wherein one group is connected with the third mounting plate and the fifth mounting plate, and the other group is connected with the fourth mounting plate and the sixth mounting plate.
Further, the driving execution assembly comprises a first hinge block, a second hinge block and an adjusting screw rod;
the first hinge block and the second hinge block are respectively hinged with the third mounting plate and the fifth mounting plate or respectively hinged with the fourth mounting plate and the sixth mounting plate;
the first hinge block is provided with a first through hole, an internal thread is arranged in the through hole, the screw rod is provided with an external thread matched with the internal thread, and the screw rod penetrates through the first hinge block and is matched and connected with the internal thread;
a convex stopping part is arranged at the end part of one end of the screw rod;
a cavity is arranged in the second hinge block, a second through hole is formed in the end face of one end of the second hinge block, the inner diameter of the second through hole is smaller than that of the cavity, the rod body of one end, provided with the stopping part, of the screw rod penetrates through the second through hole, the stopping part is arranged in the cavity, and the outer diameter of the stopping part is larger than that of the second through hole;
after the stopping part is arranged in the cavity, a preset moving gap is formed in the axial direction of the stopping part.
Furthermore, a counter bore is formed in one end of the second hinging block, and the opening is sealed by a screw plug to form the cavity.
Further, the other end of the screw rod is provided with an adjusting knob.
The invention provides a monochromator for manually adjusting the focusing radius.A reflecting sheet (usually a silicon sheet) which is longitudinally arranged is accommodated between a concave fixing column and a convex pressing column. The concave fixing column and the convex pressing column are made into a concave cylindrical surface and a convex cylindrical surface according to the longitudinal curvature, and after the concave fixing column and the convex pressing column are tightened, the silicon chip accommodated between the concave fixing column and the convex pressing column naturally forms a fixed longitudinal curvature radius due to extrusion.
Meanwhile, the concave fixing columns, the first fixing plate and the second fixing plate are fixed into an integral frame and provide supporting points for two ends of the silicon wafer, the two convex pressing columns are located between the two concave fixing columns and are provided with driving mechanisms (can be manual knob adjusting mechanisms), the two convex pressing columns can be tightly pressed on the silicon wafer, and after force is continuously applied, the silicon wafer is in a pure bending state between the two pressing columns due to stress, and then horizontal curvature is formed. The size of the horizontal curvature can be adjusted by adjusting the pressing force of the driving mechanism on the convex compression leg.
The monochromator for manually adjusting the focusing radius provided by the invention has the advantages that the longitudinal curvature is fixed, the horizontal curvature can be adjusted, the whole equipment has a reasonable structure, the design is ingenious, the adjustment is convenient, and the implementation is easy.
Drawings
FIG. 1 is a schematic perspective view of a monochromator for manually adjusting a 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 diagram of an embodiment of the female anchor stud;
FIG. 4 is a schematic disassembled view of one embodiment of the male compression leg;
FIG. 5 is a schematic perspective view of one embodiment of the drive mechanism;
FIG. 6 is a schematic perspective view of another angle of the drive mechanism of FIG. 5;
FIG. 7 is a schematic cross-sectional view of the drive actuator assembly;
FIG. 8 is a schematic sectional view of the drive actuator assembly after disassembly;
fig. 9 is a schematic structural diagram of a monochromator for manually adjusting the focal radius according to the present invention. Wherein the part numbers in the figures are represented as:
the driving device comprises a first mounting plate 1, a second mounting plate 2, a concave fixing column 3, a convex pressing column 4, a reflecting plate 5, a driving mechanism 6, a pin shaft 7, a tool withdrawal groove 341, a third mounting plate 61, a fourth mounting plate 62, a fifth mounting plate 63, a sixth mounting plate 64, a driving execution assembly 65, a reinforcing plate 66, a pulling plate 67, a first hinge block 651, a second hinge block 652, an adjusting screw rod 653, a first through hole 6511, a cavity 6521, a stopping portion 6531, a second through hole 6522, a screw plug 6523 and an adjusting knob 6532.
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 for manually adjusting a focusing radius according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of another embodiment of the embodiment shown in FIG. 1; FIG. 3 is a schematic diagram of an embodiment of the female anchor stud; FIG. 4 is a schematic disassembled view of one embodiment of the male compression leg; FIG. 5 is a schematic perspective view of one embodiment of the drive mechanism; FIG. 6 is a schematic perspective view of another angle of the drive mechanism of FIG. 5; FIG. 7 is a schematic cross-sectional view of the drive actuator assembly; FIG. 8 is a schematic sectional view of the drive actuator assembly after disassembly; fig. 9 is a schematic structural diagram of a monochromator for manually adjusting a focusing radius according to the present invention.
The invention provides a monochromator for manually adjusting the focusing radius, which comprises a first mounting plate 1, a second mounting plate 2, a concave fixing column 3, a convex pressing column 4, a reflecting sheet 5 and a driving mechanism 6, wherein the concave fixing column 3 is arranged on the first mounting plate;
the first mounting plate 1 and the second mounting plate 2 are oppositely arranged; in this embodiment, the first mounting plate 1 and the second mounting plate 2 are disposed vertically.
The concave fixing columns 3 are of columnar structures, the cylindrical surfaces of the concave fixing columns are gradually recessed from two ends to the middle, as shown in fig. 3, the number of the concave fixing columns 3 is two, the two concave fixing columns 3 are vertically and fixedly installed between the first installation plate 1 and the second installation plate 2, the axes of the two concave fixing columns 3 are parallel, and a preset distance is reserved between the two concave fixing columns 3; thus, the two concave fixing columns 3 and the first mounting plate 1 and the second mounting plate 2 form a fixing frame.
The convex compression columns 4 are of a columnar structure, the cylindrical surfaces of the convex compression columns are gradually protruded from two ends to the middle, as shown in fig. 4, the number of the convex compression columns 4 is two, the convex compression columns are vertically arranged between the first mounting plate 1 and the second mounting plate 2 through the driving mechanism 6, the axes of the two convex compression columns 4 are parallel, and the distance between the two convex compression columns 4 is smaller than the distance between the two concave fixing columns 3;
the planes of the axes of the two concave fixing columns 3 are parallel to the planes of the axes of the two convex compression columns 4, and the distance between the two parallel planes is matched with the thickness of the reflector plate 5;
the reflecting sheets 5 are a plurality of silicon sheets generally and are in strip-shaped sheet structures, and the reflecting sheets 5 are sequentially arranged between the two concave fixing columns 3 and the two convex pressing columns 4 along the width direction of the reflecting sheets; as shown in fig. 1 and 2.
The driving mechanism 6 is arranged on the first mounting plate 1 and the second mounting plate 2; the driving mechanism 6 can drive the two convex compression posts 4 to be close to or far away from the two concave fixing posts 3, and then the plurality of reflection sheets 5 are driven to deform according to a preset structure. The generatrix curvature of the concave fixed column 3 is the same as the generatrix curvature of the convex compression column 4. The lowest concave part of the concave fixing column 3 is arranged corresponding to the highest convex part of the convex compression column 4.
Through the structure, after the whole row of the reflection sheets 5 are placed between the concave fixing column 3 and the convex compression column 4, the gap between the two is not large and is equal to the thickness of the reflection sheets 5, therefore, the reflection sheets 5 can be stacked to form a row, after the drive mechanism 6 applies pulling force to the convex compression column, the convex compression column is close to the concave fixing column, at the moment, the gap is gradually reduced, the reflection sheets 5 are gradually compressed, and because the concave and convex curvatures of the concave fixing column 3 and the convex compression column 4 are the same, the multiple reflection sheets 5 can be arranged into an arc surface with fixed curvature along the outer contour arc lines of the concave fixing column and the convex compression column, and therefore, the arc surface with fixed longitudinal curvature radius is formed. When the driving mechanism 6 continues to apply tension to the convex compression leg 4, the whole row of the reflection sheets 5 are bent due to the support of the two concave fixing legs 3 at the two ends to form a shape structure form with variable curvature in the horizontal direction, so that the adjustment of the focusing radius is realized. The schematic diagram of the structure is shown in fig. 9.
For better strength requirement, the concave fixing column 3 and the convex compression leg 4 are made of steel, and the concave fixing column 3 and the convex compression leg 4 are provided with an annular tool withdrawal groove 341 at intervals of the width of one reflector 5, so that the processing is convenient, and after a plurality of reflectors are placed between the concave fixing column 3 and the convex compression leg 4, a gap can be formed naturally after being stressed.
The driving mechanism 6 has different structural forms, and in one specific embodiment, as shown in fig. 5 to 8, the driving mechanism 6 includes a third mounting plate 61, a fourth mounting plate 62, a fifth mounting plate 63, a sixth mounting plate 64 and a driving executing assembly 65; the third mounting plate 61, the fourth mounting plate 62, the fifth mounting plate 63 and the sixth mounting plate 64 are all mounted between the first mounting plate 1 and the second mounting plate 2; the third mounting plate 61 and the fifth mounting plate 63 are hinged with the first mounting plate 1 through a pin shaft 7;
the fourth mounting plate 62 and the sixth mounting plate 64 are hinged with the second mounting plate 2 through a pin shaft 7;
one of the two male compression columns 4 is fixedly mounted between the third mounting plate 61 and the fourth mounting plate 62, and the other is fixedly mounted between the fifth mounting plate 63 and the sixth mounting plate 64;
the driving executing assembly 65 is in driving connection with the third mounting plate 61, the fourth mounting plate 62, the fifth mounting plate 63 and the sixth mounting plate 64, and by adjusting the driving executing assembly 65, the third mounting plate 61, the fourth mounting plate 62, the fifth mounting plate 63 and the sixth mounting plate 64 can be driven to rotate around respective hinge axes, and the two convex compression columns 4 are driven to approach or depart from the concave fixing columns 3.
In the structure, the third mounting plate 61, the fourth mounting plate 62 and one of the convex compression columns 4 form a whole, and are hinged with the first mounting plate 1 and the second mounting plate 2 through the pin shafts 7 from top to bottom, so that after force is applied to the third mounting plate 61 or the fourth mounting plate 62, the convex compression column 3 is driven to move back and forth, and the convex compression column on the other side is similar in structure.
For the purpose of increasing strength and structural stability, the third mounting panel 61 with between the fourth mounting panel 62 and the fifth mounting panel 63 with all install reinforcing plate 66 between the sixth mounting panel 64, fixed connection tractive board 67 on the reinforcing plate 66, tractive board 67 respectively with two the convex compression leg 4 cup joints or the joint.
In one embodiment of the driving executing assembly 65, the driving executing assemblies 65 are two groups, one group is connected to the third mounting plate 61 and the fifth mounting plate 63, and the other group is connected to the fourth mounting plate 62 and the sixth mounting plate 64.
Since the two sets of driving executing assemblies 65 are installed up and down respectively, when the driving executing assemblies are adjusted respectively, it is necessary to avoid the phenomenon of being locked due to a strong force, and therefore, the driving executing assemblies 65 may include a first hinge block 651, a second hinge block 652 and an adjusting screw 653; the first hinge block 651 and the second hinge block 652 are respectively hinged with the third mounting plate 61 and the fifth mounting plate 63 or respectively hinged with the fourth mounting plate 62 and the sixth mounting plate 64; the first hinge block 651 is provided with a first through hole 6511, an internal thread is arranged in the through hole, the lead screw 653 is provided with an external thread matched with the internal thread, and the lead screw 653 passes through the first hinge block 651 and is matched and connected with the internal thread; a protruding stopping part 6531 is arranged at the end part of one end of the screw rod 653; the second hinge block 652 is provided with a cavity 6521 therein, wherein one end face of the second hinge block 652 is provided with a second through hole 6522, the inner diameter of the second through hole 6522 is smaller than the inner diameter of the cavity 6521, the shaft of the end of the screw rod 653 with the stopper 6531 passes through the second through hole 6522, the stopper 6531 is placed in the cavity 6521, and the outer diameter of the stopper 6531 is larger than the inner diameter of the second through hole 6522; the stopper portion 6531 has a predetermined moving clearance in the axial direction after being placed in the cavity 6521.
Under this kind of structure, when rotating lead screw 653 on, because a set of drive executive component below has the axial clearance, consequently, can move third mounting panel 61 and fifth mounting panel 63 and be close to each other or keep away from a certain distance, also drive fourth mounting panel 62 and sixth mounting panel 64 simultaneously and do the same motion, after the axial clearance on being eliminated, will die, the lead screw below readjustment this moment utilizes the axial clearance in the drive executive component on above to adjust, so relapse, can adjust reflector plate 5 to required horizontal curvature gradually.
For convenience of processing and installation, one end of the second hinge block 652 is provided with a counter bore, and the opening is sealed by a plug 6523 to form the cavity 6521.
For adjustment, the other end of the lead screw 653 is provided with an adjusting knob 6532. The manual adjustment can be conveniently and laborsavingly carried out by adjusting the knob 6532.
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 interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. 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 for manually adjusting the focusing radius is characterized by comprising a first mounting plate (1), a second mounting plate (2), a concave fixing column (3), a convex pressing column (4), a reflecting sheet (5) and a driving mechanism (6);
the first mounting plate (1) and the second mounting plate (2) are oppositely arranged;
the concave fixing columns (3) are of columnar structures, the cylindrical surfaces of the concave fixing columns are gradually recessed from two ends to the middle, the number of the concave fixing columns (3) is two, the two concave fixing columns (3) are vertically and fixedly installed between the first installation plate (1) and the second installation plate (2), the axes of the two concave fixing columns (3) are parallel, and a preset distance is reserved between the two concave fixing columns (3);
the convex compression columns (4) are of a columnar structure, the cylindrical surfaces of the convex compression columns gradually protrude from two ends to the middle, the number of the convex compression columns (4) is two, the convex compression columns are vertically arranged between the first mounting plate (1) and the second mounting plate (2) through the driving mechanism (6), the axes of the two convex compression columns (4) are parallel, and the distance between the two convex compression columns (4) is smaller than the distance between the two concave fixing columns (3);
the plane where the axes of the two concave fixing columns (3) are located is parallel to the plane where the axes of the two convex pressing columns (4) are located, and the distance between the two parallel planes is matched with the thickness of the reflecting sheet (5);
the reflecting sheets (5) are of strip-shaped sheet structures, and the reflecting sheets (5) are sequentially arranged between the two concave fixing columns (3) and the two convex pressing columns (4) along the width direction of the reflecting sheets;
the driving mechanism (6) is arranged on the first mounting plate (1) and the second mounting plate (2); the driving mechanism (6) can drive the two convex compression columns (4) to be close to or far away from the two concave fixing columns (3), and then the plurality of reflection sheets (5) are driven to deform according to a preset structure.
2. Monochromator according to claim 1, wherein the female fixation post (3) has the same generatrix curvature as the male compression post (4).
3. Monochromator for manual adjustment of the focusing radius according to claim 2, characterized in that the concave lowest of the concave fixation posts (3) corresponds to the convex highest of the convex compression posts (4).
4. A monochromator for manually adjusting the focusing radius according to claim 3, characterized in that the concave fixing post (3) and the convex pressing post (4) are made of steel, and the concave fixing post (3) and the convex pressing post (4) are provided with an annular relief groove (341) every other width of the reflector plate (5).
5. A monochromator for manually adjusting the focus radius according to any of claims 1 to 4, characterized in that the drive mechanism (6) comprises a third mounting plate (61), a fourth mounting plate (62), a fifth mounting plate (63), a sixth mounting plate (64) and a drive actuator assembly (65);
the third mounting plate (61), the fourth mounting plate (62), the fifth mounting plate (63) and the sixth mounting plate (64) are all mounted between the first mounting plate (1) and the second mounting plate (2);
the third mounting plate (61) and the fifth mounting plate (63) are hinged with the first mounting plate (1);
the fourth mounting plate (62) and the sixth mounting plate (64) are hinged with the second mounting plate (2);
one of the two convex compression columns (4) is fixedly arranged between the third mounting plate (61) and the fourth mounting plate (62), and the other one is fixedly arranged between the fifth mounting plate (63) and the sixth mounting plate (64);
the driving execution assembly (65) is in driving connection with the third mounting plate (61), the fourth mounting plate (62), the fifth mounting plate (63) and the sixth mounting plate (64), and by adjusting the driving execution assembly (65), the third mounting plate (61), the fourth mounting plate (62), the fifth mounting plate (63) and the sixth mounting plate (64) can be driven to rotate around respective hinge axes and drive the two convex compression columns (4) to be close to or far away from the concave fixing columns (3).
6. The monochromator for manually adjusting the focusing radius according to claim 5, wherein a reinforcing plate (66) is installed between the third mounting plate (61) and the fourth mounting plate (62) and between the fifth mounting plate (63) and the sixth mounting plate (64), a pulling plate (67) is fixedly connected to the reinforcing plate (66), and the pulling plate (67) is respectively sleeved or clamped with the two convex compression columns (4).
7. A monochromator for manually adjusting the focal radius according to claim 5, wherein the actuating drive means (65) are provided in two groups, one of which is connected to the third mounting plate (61) and the fifth mounting plate (63) and the other of which is connected to the fourth mounting plate (62) and the sixth mounting plate (64).
8. A monochromator for manually adjusting the focal radius according to claim 7, wherein the drive actuator assembly (65) comprises a first articulated block (651), a second articulated block (652) and an adjustment screw (653);
the first hinge block (651) and the second hinge block (652) are respectively hinged with the third mounting plate (61) and the fifth mounting plate (63) or respectively hinged with the fourth mounting plate (62) and the sixth mounting plate (64);
the first hinge block (651) is provided with a first through hole (6511), an internal thread is arranged in the through hole, the lead screw (653) is provided with an external thread matched with the internal thread, and the lead screw (653) penetrates through the first hinge block (651) and is matched and connected with the internal thread;
a protruding stopping part (6531) is arranged at the end part of one end of the screw rod (653);
a cavity (6521) is formed in the second hinge block (652), a second through hole (6522) is formed in the end face of one end of the second hinge block, the inner diameter of the second through hole (6522) is smaller than that of the cavity (6521), the shaft body of one end of the screw rod (653) with the stop part (6531) penetrates through the second through hole (6522), the stop part (6531) is placed in the cavity (6521), and the outer diameter of the stop part (6531) is larger than the inner diameter of the second through hole (6522);
the blocking part (6531) is arranged in the cavity (6521) and has a preset moving clearance in the axial direction.
9. A monochromator for manually adjusting the focal radius according to claim 8, wherein one of the ends of the second hinged block (652) is countersunk and the opening is closed off by a plug (6523) to form the cavity (6521).
10. A monochromator for manually adjusting the focal radius according to claim 8, wherein the other end of the lead screw (653) is provided with an adjusting knob (6532).
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| CN202010864975.4A CN112002455B (en) | 2020-08-25 | 2020-08-25 | Monochromator for manually adjusting focusing radius |
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| CN112002455B true CN112002455B (en) | 2022-09-02 |
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| DE10239691B4 (en) * | 2002-08-25 | 2004-06-09 | Hahn-Meitner-Institut Berlin Gmbh | Neutron optical component for neutron small angle scattering measurement technology |
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| CN101599307A (en) * | 2009-03-12 | 2009-12-09 | 中国原子能科学研究院 | Neutron monochromator shielding device |
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| CN112002455A (en) | 2020-11-27 |
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