A horizontal adjustment system

Abstract

The present application belongs to the technical field of neutron scattering spectrometer, and discloses a horizontal adjusting system, which comprises a vacuum box, a coarse adjusting mechanism, a fine adjusting mechanism and a sealed supporting mechanism; the coarse adjusting mechanism comprises a first supporting column, which is supported and connected to the vacuum box; the fine adjusting mechanism is arranged in the vacuum cavity and spaced from the inner wall of the vacuum cavity, and a collimation system is installed on the fine adjusting mechanism; the sealed supporting mechanism comprises a second supporting column and a bellows, one end of the second supporting column is fixedly connected to the coarse adjusting mechanism, the other end of the second supporting column passes through the wall of the vacuum box and is supported and connected to the fine adjusting mechanism, the bellows is sleeved on the outer periphery of the second supporting column, one end of the bellows is sealingly connected to the coarse adjusting mechanism, and the other end of the bellows is sealingly connected to the vacuum box. The fine adjusting mechanism is arranged in space with the inner wall of the vacuum cavity, so that the collimation system is prevented from being affected by the deformation of the vacuum box, and the collimation precision of the collimation system in the vacuum box is improved.

Description

Technical Field

[0001] This invention relates to the field of neutron scattering spectrometer technology, and more particularly to a horizontal adjustment system. Background Technology

[0002] Small-angle neutron scattering (SANS) spectrometers are experimental platforms that utilize strictly collimated neutron beams to study the microscopic structure (1 nanometer to hundreds of nanometers) within matter. They have wide applications in new drug development, new energy sources, and new materials, providing strong support for national basic and applied research. Traditional SANS spectrometers typically employ a pinhole geometry testing scheme. This involves using a neutron guide to extract thermal and cold neutrons from the moderator surface, then using a source aperture and a sample aperture to collimate the incident neutron beam. The collimated neutrons are scattered by the sample and received by a detector. The internal structure of the sample is inferred by statistically analyzing the positions of the neutrons reaching the detector surface. Because neutrons readily interact with air molecules, both the neutron guide and the aperture need to be placed in a vacuum environment. Therefore, developing a switching mechanism capable of operating in a vacuum with good motion precision is essential for improving the spectrometer's neutron flux and enabling flexible and varied modes.

[0003] In the existing technology, the structure of the horizontal switching system of the neutron scattering spectrometer is mainly that the vacuum cavity is directly connected to the internal high-precision support device, without fully considering the reduction in the precision of the internal components caused by the vacuum deformation of the cavity. Summary of the Invention

[0004] One objective of this invention is to provide a horizontal adjustment system in which the fine-tuning mechanism is spaced apart from the inner wall of the vacuum chamber, thereby avoiding the influence of vacuum chamber deformation on the collimation system and improving the collimation accuracy of the collimation system within the vacuum chamber.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A horizontal adjustment system for adjusting the working position of the collimation system of a neutron scattering spectrometer, the horizontal adjustment system comprising:

[0007] A vacuum chamber, the interior of which forms a vacuum cavity;

[0008] A coarse adjustment mechanism, the coarse adjustment mechanism including a first support column, the first support column being supported and connected to the vacuum chamber;

[0009] A fine-tuning mechanism is disposed within the vacuum chamber and spaced from the inner wall of the vacuum chamber; the collimation system is mounted on the fine-tuning mechanism.

[0010] A sealing support mechanism includes a second support column and a bellows. One end of the second support column is fixedly connected to the coarse adjustment mechanism, and the other end of the second support column passes through the wall of the vacuum chamber and is supported and connected to the fine adjustment mechanism. The bellows is sleeved on the outer periphery of the second support column, and one end of the bellows is sealed and connected to the coarse adjustment mechanism, while the other end of the bellows is sealed and connected to the vacuum chamber.

[0011] As an optional technical solution, the coarse adjustment mechanism further includes a first substrate, a Z-axis adjustment component, and a second substrate. The first substrate is mounted on a workbench or the ground, and the second substrate is located above the first substrate. The Z-axis adjustment component is connected between the first substrate and the second substrate and is used to adjust the position of the second substrate in the Z-axis direction.

[0012] As an optional technical solution, the coarse adjustment mechanism further includes a third substrate and a plane adjustment component. The third substrate is mounted on the second substrate, and the sealing support mechanism and the first support column are both mounted on the third substrate. The plane adjustment component is connected between the third substrate and the second substrate and is used to adjust the position of the third substrate in the XY plane.

[0013] As an optional technical solution, the coarse adjustment mechanism further includes a locking component, which is mounted on the third substrate and is used to lock the third substrate to the second substrate.

[0014] As an optional technical solution, the sealing support mechanism further includes a sealing ring, which is provided between the bellows and the coarse adjustment mechanism, and between the bellows and the vacuum chamber.

[0015] As an optional technical solution, a support plate is installed at the bottom of the fine-tuning mechanism, and one end of the second support column extending into the vacuum cavity is fixedly connected to the support plate. The fine-tuning mechanism includes a motor, a ball screw nut, and a guide rail slider assembly. The guide rail slider assembly extends along the Y-axis direction, and the alignment system is installed on the guide rail slider assembly. The ball screw nut is connected between the output end of the motor and the guide rail slider assembly, and the motor is used to drive the guide rail slider assembly and the alignment system to move along the Y-axis direction.

[0016] As an optional technical solution, the collimation system includes an optical mirror device, a first neutron aperture plate device, a second neutron aperture plate device, a first neutron guide tube device, and a second neutron guide tube device, wherein there are several fine adjustment mechanisms and two support plates;

[0017] Two fine-tuning mechanisms are mounted side-by-side on the first carrier plate. The optical mirror device and the first neutron conduit device are mounted side-by-side on one of the fine-tuning mechanisms along the Y-axis, and the first neutron aperture plate device is mounted on the other fine-tuning mechanism.

[0018] The second carrier plate is equipped with the second neutron conduit device and several fine adjustment mechanisms. The several fine adjustment mechanisms located on the second carrier plate are arranged side by side, and each fine adjustment mechanism is equipped with the second neutron aperture plate device.

[0019] As an optional technical solution, each of the bearing plates has at least two of the sealing support mechanisms at its bottom.

[0020] As an optional technical solution, the fine-tuning mechanism on which the first neutron aperture plate device is installed is further provided with an X-axis adjustment component. The first neutron aperture plate device is installed on the X-axis adjustment component, and the X-axis adjustment component is used to adjust the position of the first neutron aperture plate device in the X-axis direction.

[0021] As an optional technical solution, the second carrier plate is also provided with a Y-axis adjustment component. The output end of the Y-axis adjustment component is connected to the second neutron conduit device, and the Y-axis adjustment component is used to adjust the position of the second neutron conduit device in the Y-axis direction.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention provides a horizontal adjustment system for adjusting the working position of the collimation system of a neutron scattering spectrometer. A sealed support mechanism is positioned between the bottom plate of the vacuum chamber and the top of the coarse adjustment mechanism. The vacuum chamber is supported by a first support column, and the fine adjustment mechanism is supported by a second support column. During collimation system position adjustment, the coarse adjustment mechanism is first used to coarsely adjust the positions of the vacuum chamber and the collimation system. This coarse adjustment involves a large range of dimensional adjustments. During coarse adjustment, the position of the first support column supporting the vacuum chamber changes, thus achieving coarse adjustment of the vacuum chamber and aligning it with other systems of the neutron scattering spectrometer. The position of the second support column supporting the fine adjustment mechanism changes, thus achieving coarse adjustment of the fine adjustment mechanism and the collimation system mounted on it. Then, the fine adjustment mechanism is used to finely adjust the position of the collimation system, performing small-range dimensional adjustments. This improves the adjustment accuracy and speed of the collimation system. Neutrons inside the vacuum chamber are protected from the influence of air molecules. The vacuum chamber, forming the vacuum cavity, is deformed by atmospheric pressure. This invention integrates the fine adjustment mechanism and the collimation system with the vacuum chamber... The cavity's inner wall is spaced to prevent the collimation system from being affected by the deformation of the vacuum chamber, thus improving the collimation accuracy of the collimation system within the vacuum chamber. For example, the deformed parts of the vacuum chamber cannot contact the fine-tuning mechanism and the collimation system, and therefore cannot exert force on them, ensuring the independent operation of the fine-tuning mechanism and the collimation system and improving the accuracy of fine-tuning. A bellows is installed on the outer periphery of the second support column to isolate the vacuum chamber from the outside air, preventing air from entering the vacuum chamber through the gap between the outer wall of the second support column and the chamber wall. For example, during coarse adjustment, the second support column moves relative to the chamber wall, changing the size and / or position of the gap. The bellows is fitted around the outer periphery of the second support column without affecting the movement of the second support column relative to the chamber wall. One end of the bellows is sealed to the coarse adjustment mechanism, and the other end is tightly connected to the vacuum chamber, ensuring that outside air cannot pass through the gap between the outer wall of the second support column and the chamber wall. Attached Figure Description

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is a front view of the horizontal adjustment system described in the embodiment;

[0026] Figure 2 A top view of the horizontal adjustment system described in the embodiment (the cover of the vacuum chamber is not shown);

[0027] Figure 3 This is a front sectional view of the horizontal adjustment system described in the embodiment;

[0028] Figure 4 for Figure 3 A magnified view of a portion of position A in the middle;

[0029] Figure 5 for Figure 3 A magnified view of a portion of position B in the middle;

[0030] Figure 6 This is a first-view structural schematic diagram of the horizontal adjustment system described in the embodiment (the side walls and cover of the vacuum chamber are not shown);

[0031] Figure 7 This is a second-view structural schematic diagram of the horizontal adjustment system described in the embodiment (the side walls and cover of the vacuum chamber are not shown).

[0032] In the picture:

[0033] 100. Optical reflector device; 200. First neutron aperture plate device; 300. Second neutron aperture plate device; 400. First neutron conduit device; 500. Second neutron conduit device;

[0034] 1. Vacuum chamber; 11. Vacuum cavity;

[0035] 2. Coarse adjustment mechanism; 21. First support column; 22. First base plate; 23. Z-axis adjustment assembly; 231. Threaded rod; 232. Connecting flange; 24. Second base plate; 25. Third base plate; 26. Planar adjustment assembly; 261. First fixed seat; 262. First adjusting bolt; 263. Second fixed seat; 264. Second adjusting bolt; 27. Locking assembly;

[0036] 3. Fine-tuning mechanism; 31. Motor; 32. Ball screw nut; 33. Guide rail slider assembly;

[0037] 4. Sealing support mechanism; 41. Second support column; 42. Bellows; 43. Sealing ring;

[0038] 5. Support plate;

[0039] 6. X-axis adjustment assembly; 61. First mounting plate; 62. Adjustment base plate; 63. Second mounting plate; 64. Bearing seat; 65. Adjustment bolt;

[0040] 7. Y-axis adjustment assembly; 71. Adjustment motor; 72. Adjustment ball screw. Detailed Implementation

[0041] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] like Figures 1 to 7 As shown, this embodiment provides a horizontal adjustment system for adjusting the working position of the collimation system of a neutron scattering spectrometer. The horizontal adjustment system includes a vacuum chamber 1, a coarse adjustment mechanism 2, a fine adjustment mechanism 3, and a sealing support mechanism 4. The vacuum chamber 1 forms a vacuum cavity 11 inside. The coarse adjustment mechanism 2 includes a first support column 21, which is supported and connected to the vacuum chamber 1. The fine adjustment mechanism 3 is disposed inside the vacuum cavity 11 and is spaced from the inner wall of the vacuum cavity 11. The collimation system is mounted on the fine adjustment mechanism 3. The sealing support mechanism 4 includes a second support column 41 and a bellows 42. One end of the second support column 41 is fixedly connected to the coarse adjustment mechanism 2, and the other end of the second support column 41 passes through the wall of the vacuum chamber 1 and is supported and connected to the fine adjustment mechanism 3. The bellows 42 is sleeved on the outer periphery of the second support column 41, and one end of the bellows 42 is sealed and connected to the coarse adjustment mechanism 2, while the other end of the bellows 42 is sealed and connected to the vacuum chamber 1.

[0048] Specifically, the sealing support mechanism 4 is located between the bottom plate of the vacuum chamber 1 and the top of the coarse adjustment mechanism 2. The vacuum chamber 1 is supported by the first support column 21, and the fine adjustment mechanism 3 is supported by the second support column 41. When the collimation system is adjusted, the coarse adjustment mechanism 2 is first used to coarsely adjust the position of the vacuum chamber 1 and the collimation system. The coarse adjustment is a large-range dimensional adjustment. When the coarse adjustment mechanism 2 performs the coarse adjustment, the position of the first support column 21 supporting the vacuum chamber 1 changes, thus achieving the coarse adjustment of the vacuum chamber 1, so that the vacuum chamber 1 and other systems of the neutron heat dissipation spectrometer are aligned. The alignment is achieved by changing the position of the second support column 41 that supports the fine-tuning mechanism 3, thus realizing the coarse adjustment of the fine-tuning mechanism 3 and the collimation system mounted on it. Then, the fine-tuning mechanism 3 is used to fine-tune the position of the collimation system. Fine-tuning involves small-range dimensional adjustments, which improves the adjustment accuracy and speed of the collimation system. Neutrons within the vacuum cavity 11 are protected from the influence of air molecules. The vacuum chamber 1, which forms the vacuum cavity 11, deforms under atmospheric pressure. In this embodiment, the fine-tuning mechanism 3 and the collimation system are integrated with the vacuum cavity. The inner wall of the 11 is spaced to prevent the collimation system from being affected by the deformation of the vacuum chamber 1, thereby improving the collimation accuracy of the collimation system within the vacuum chamber 1. For example, the deformed parts of the vacuum chamber 1 cannot contact the fine adjustment mechanism 3 and the collimation system, and therefore cannot exert force on them. This ensures the independent operation of the fine adjustment mechanism 3 and the collimation system, improving the accuracy of fine adjustment. A bellows 42 is provided on the outer periphery of the second support column 41 to isolate the vacuum chamber 11 from the outside air, preventing air from passing through the outer wall of the second support column 41 and contacting the vacuum chamber 1. The gap between the walls of the vacuum chamber 41 and the vacuum chamber 1 is allowed to pass through. For example, during coarse adjustment, the second support column 41 moves relative to the walls of the vacuum chamber 1 to change the size and / or position of the gap. The bellows 42 is fitted around the outer periphery of the second support column 41 without affecting the movement of the second support column 41 relative to the walls of the vacuum chamber 1. One end of the bellows 42 is sealed and connected to the coarse adjustment mechanism 2, and the other end of the bellows 42 is densely connected to the vacuum chamber 1. This ensures that outside air cannot pass through the gap between the outer wall of the second support column 41 and the walls of the vacuum chamber 1.

[0049] The collimation system of the neutron scattering spectrometer is an existing device, and its specific working principle can be found in existing technology. It will not be described in detail in this embodiment.

[0050] Optionally, the coarse adjustment mechanism 2 further includes a first base plate 22, a Z-axis adjustment assembly 23, and a second base plate 24. The first base plate 22 is mounted on a workbench or the ground, and the second base plate 24 is located above the first base plate 22. The Z-axis adjustment assembly 23 is connected between the first base plate 22 and the second base plate 24, and is used to adjust the position of the second base plate 24 in the Z-axis direction. In this embodiment, the Z-axis adjustment assembly 23 includes a threaded rod 231 and two connecting flanges 232. One connecting flange 232 is bolted to the upper end face of the first base plate 22, and the other connecting flange 232 is bolted to the lower end face of the second base plate 24. Both connecting flanges 232 have internal threaded holes, and the threaded rod 231 is threaded between the two connecting flanges 232. In other embodiments, the Z-axis adjustment assembly 23 is a linear support drive, such as a cylinder or a hydraulic cylinder. Optionally, multiple sets of Z-axis adjustment assemblies 23 are provided to improve support stability and balance. In this embodiment, six sets of Z-axis adjustment assemblies 23 are provided.

[0051] Optionally, the coarse adjustment mechanism 2 also includes a third substrate 25 and a plane adjustment component 26. The third substrate 25 is mounted on the second substrate 24. The sealing support mechanism 4 and the first support column 21 are both mounted on the third substrate 25. The plane adjustment component 26 is connected between the third substrate 25 and the second substrate 24. The plane adjustment component 26 is used to adjust the position of the third substrate 25 on the XY plane. In this embodiment, the planar adjustment component 26 includes an X-axis adjustment component and a Y-axis adjustment component. The X-axis adjustment component includes a first fixed base 261 and a first adjusting bolt 262. The first fixed base 261 is fixedly installed on the side of the second substrate 24 located in the YZ plane by bolts. The first adjusting bolt 262 passes through the first fixed base 261 and is threadedly connected to the third substrate 25. The first adjusting bolt 262 can drive the third substrate 25 to move along the X-axis direction, so that the sealing support mechanism 4 and the first support column 21 installed on the third substrate 25 can be adjusted along the X-axis direction. The Y-axis adjustment component includes a second fixed base 263 and a second adjusting bolt 264. The second fixed base 263 is fixedly installed on the side of the second substrate 24 located in the XZ plane. The second adjusting bolt 264 passes through the second fixed base 263 and is threadedly connected to the third substrate 25. The second adjusting bolt 264 can drive the third substrate 25 to move along the Y-axis direction, so that the sealing support mechanism 4 and the first support column 21 installed on the third substrate 25 can be adjusted along the Y-axis direction. In other embodiments, the planar adjustment component 26 is a linear support drive, such as a cylinder or hydraulic cylinder, some of which push against the third substrate 25 from the YZ plane, and others from the XZ plane.

[0052] Optionally, the coarse adjustment mechanism 2 further includes a locking component 27, which is mounted on the third substrate 25 and used to lock the third substrate 25 to the second substrate 24. After coarse adjustment is completed, the locking component 27 locks the third substrate 25 onto the second substrate 24, preventing the third substrate 25 from shifting relative to the second substrate 24. In this embodiment, the locking component 27 includes a fixing bolt and a nut.

[0053] Optionally, the sealing support mechanism 4 also includes a sealing ring 43. Sealing rings 43 are provided between the bellows 42 and the coarse adjustment mechanism 2, and between the bellows 42 and the vacuum chamber 1. Both ends of the bellows 42 are provided with flange connection ends. The upper flange connection end is fixedly connected to the bottom plate of the vacuum chamber 1 by bolts, and the lower flange connection end is fixedly connected to the third base plate 25 by bolts. An annular groove is formed on the surface of the flange connection end, and the sealing ring 43 is accommodated in the annular groove. The gap between the flange connection end and the bottom plate of the vacuum chamber 1, and the gap between the flange connection end and the third base plate 25, are sealed by the sealing ring 43, which can improve the sealing effect and prevent air from entering the bellows 42.

[0054] Optionally, a support plate 5 is installed at the bottom of the fine-tuning mechanism 3. One end of the second support column 41 extending into the vacuum chamber 11 is fixedly connected to the support plate 5. The fine-tuning mechanism 3 includes a motor 31, a ball screw 32, and a guide rail slider assembly 33. The guide rail slider assembly 33 extends along the Y-axis. The alignment system is installed on the guide rail slider assembly 33. The ball screw 32 is connected between the output end of the motor 31 and the guide rail slider assembly 33. The motor 31 drives the guide rail slider assembly 33 and the alignment system to move along the Y-axis. The motor 31 drives the ball screw 32, which in turn drives the guide rail slider assembly 33 and the alignment system to move along the Y-axis, thus achieving fine-tuning along the Y-axis.

[0055] Optionally, the collimation system includes an optical mirror device 100, a first neutron aperture plate device 200, a second neutron aperture plate device 300, a first neutron conduit device 400, and a second neutron conduit device 500, with several fine adjustment mechanisms 3 and two support plates 5.

[0056] In this embodiment, the optical reflector device 100, the first neutron aperture plate device 200, the second neutron aperture plate device 300, the first neutron conduit device 400, and the second neutron conduit device 500 are all existing devices, and their working principles can be referred to the existing technology. They will not be described in detail in this embodiment.

[0057] Optionally, two fine adjustment mechanisms 3 are installed side by side on the first support plate 5. The optical reflector device 100 and the first neutron guide device 400 are installed side by side on one of the fine adjustment mechanisms 3 along the Y-axis direction, and the first neutron aperture plate device 200 is installed on the other fine adjustment mechanism 3. The second support plate 5 is equipped with a second neutron guide device 500 and several fine adjustment mechanisms 3. The several fine adjustment mechanisms 3 on the second support plate 5 are arranged side by side, and each fine adjustment mechanism 3 is equipped with a second neutron aperture plate device 300.

[0058] Specifically, the first support plate 5 is the front support plate, and the two fine adjustment mechanisms 3 installed on the front support plate are the first front fine adjustment mechanism and the second front fine adjustment mechanism, respectively. The optical reflector device 100 and the first neutron guide device 400 are installed side by side on the first front fine adjustment mechanism along the Y-axis direction. The first neutron aperture plate device 200 is installed on the second front fine adjustment mechanism. The second support plate 5 is the rear support plate, and the fine adjustment mechanism 3 installed on the rear support plate is the rear fine adjustment mechanism. There are several rear fine adjustment mechanisms, and each rear fine adjustment mechanism is equipped with a second neutron aperture plate device 300.

[0059] Optionally, the first neutron aperture plate device 200 is located between the first neutron conduit device 400 and the second neutron conduit device 500.

[0060] Fine-tuning includes three modes: conduit mode, multi-slit mode, and laser collimation mode. When switching to laser collimation mode, the first front-end fine-tuning mechanism adjusts the optical mirror device 100. When switching to conduit mode, in laser collimation mode, the first front-end fine-tuning mechanism adjusts the first neutron conduit device 400, and the rear-end fine-tuning mechanism adjusts the second neutron conduit device 500, so that the first neutron conduit device 400 and the second neutron conduit device 500 are aligned. When switching to multi-slit mode, in laser collimation mode, the first front-end fine-tuning mechanism adjusts the first neutron conduit device 400, and the second front-end fine-tuning mechanism carrying the first neutron aperture plate device 200 and the rear-end fine-tuning mechanism carrying the second neutron aperture plate device 300 are adjusted one by one, i.e., individually.

[0061] In this embodiment, three back-end fine-tuning mechanisms are installed on the back-end support plate.

[0062] Optionally, each support plate 5 has at least two sealing support mechanisms 4 at its bottom. In this embodiment, the bottom of the front support plate has two sealing support mechanisms 4, and the bottom of the rear support plate has four sealing support mechanisms 4.

[0063] Optionally, the fine adjustment mechanism 3, on which the first neutron aperture plate device 200 is installed, is also provided with an X-axis adjustment component 6. The first neutron aperture plate device 200 is installed on the X-axis adjustment component 6, which is used to adjust the position of the first neutron aperture plate device 200 in the X-axis direction. The X-axis adjustment assembly 6 includes a first mounting plate 61, an adjustment base plate 62, a second mounting plate 63, a support seat 64, and an adjustment bolt 65. The first mounting plate 61 is fixedly mounted on the guide rail slider assembly 33 of the second front-end fine adjustment mechanism. The support seat 64 is fixedly mounted on the first mounting plate 61. The adjustment base plate 62 is movably mounted on the first mounting plate 61. The second mounting plate 63 is fixedly mounted on the adjustment base plate 62. The first neutron aperture plate device 200 is fixedly mounted on the second mounting plate 63. The adjustment bolt 65 passes through the support seat 64 and is threadedly connected to the adjustment base plate 62. The adjustment bolt 65 can drive the adjustment base plate 62 to move along the X-axis direction, thereby causing the adjustment base plate 62 to drive the second mounting plate 63 and the first neutron aperture plate device 200 to move along the X-axis direction.

[0064] Optionally, a Y-axis adjustment assembly 7 is also provided on the second support plate 5. The output end of the Y-axis adjustment assembly 7 is connected to the second neutron conduit device 500. The Y-axis adjustment assembly 7 is used to adjust the position of the second neutron conduit device 500 in the Y-axis direction. The Y-axis adjustment assembly 7 includes an adjustment motor 71 and an adjustment ball screw 72. The adjustment motor 71 is mounted on the rear support plate. One end of the adjustment ball screw 72 is connected to the output end of the adjustment motor 71, and the other end of the adjustment ball screw 72 is connected to the second neutron conduit device 500. The adjustment motor 71 drives the adjustment ball screw 72, thereby causing the adjustment ball screw 72 and the second neutron conduit device 500 to move along the Y-axis direction.

[0065] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A horizontal adjustment system for adjusting the working position of the collimation system of a neutron scattering spectrometer, characterized in that, The horizontal adjustment system includes: Vacuum chamber (1), the interior of which forms a vacuum cavity (11); The coarse adjustment mechanism (2) includes a first support column (21) which is supported and connected to the vacuum chamber (1). The fine adjustment mechanism (3) is disposed in the vacuum chamber (11) and is spaced from the inner wall of the vacuum chamber (11). The collimation system is mounted on the fine adjustment mechanism (3). A sealing support mechanism (4) includes a second support column (41) and a bellows (42). One end of the second support column (41) is fixedly connected to the coarse adjustment mechanism (2), and the other end of the second support column (41) passes through the wall of the vacuum chamber (1) and is supported and connected to the fine adjustment mechanism (3). The bellows (42) is sleeved on the outer periphery of the second support column (41), and one end of the bellows (42) is sealed and connected to the coarse adjustment mechanism (2), and the other end of the bellows (42) is sealed and connected to the vacuum chamber (1). The coarse adjustment mechanism (2) further includes a first substrate (22), a Z-axis adjustment component (23), and a second substrate (24). The first substrate (22) is mounted on a workbench or the ground, and the second substrate (24) is located above the first substrate (22). The Z-axis adjustment component (23) is connected between the first substrate (22) and the second substrate (24). The Z-axis adjustment component (23) is used to adjust the position of the second substrate (24) in the Z-axis direction. The coarse adjustment mechanism (2) further includes a third substrate (25) and a plane adjustment component (26). The third substrate (25) is mounted on the second substrate (24). The sealing support mechanism (4) and the first support column (21) are both mounted on the third substrate (25). The plane adjustment component (26) is connected between the third substrate (25) and the second substrate (24). The plane adjustment component (26) is used to adjust the position of the third substrate (25) on the XY plane. The bottom of the fine adjustment mechanism (3) is equipped with a support plate (5). One end of the second support column (41) extending into the vacuum chamber (11) is fixedly connected to the support plate (5). The fine adjustment mechanism (3) includes a motor (31), a ball screw nut (32), and a guide rail slider assembly (33). The guide rail slider assembly (33) extends along the Y-axis direction. The alignment system is installed on the guide rail slider assembly (33). The ball screw nut (32) is connected between the output end of the motor (31) and the guide rail slider assembly (33). The motor (31) is used to drive the guide rail slider assembly (33) and the alignment system to move along the Y-axis direction. The collimation system includes an optical mirror device (100), a first neutron aperture plate device (200), a second neutron aperture plate device (300), a first neutron conduit device (400), and a second neutron conduit device (500). The fine adjustment mechanism (3) is configured in several units, and the support plate (5) is configured in two units. Two fine adjustment mechanisms (3) are mounted side by side on the first carrier plate (5). The optical mirror device (100) and the first neutron conduit device (400) are mounted side by side on one of the fine adjustment mechanisms (3) along the Y-axis direction. The first neutron aperture plate device (200) is mounted on the other fine adjustment mechanism (3). The second carrier plate (5) is equipped with the second neutron conduit device (500) and a plurality of the fine adjustment mechanisms (3). The plurality of fine adjustment mechanisms (3) located on the second carrier plate (5) are arranged side by side and each fine adjustment mechanism (3) is equipped with the second neutron aperture plate device (300).

2. The horizontal adjustment system according to claim 1, characterized in that, The coarse adjustment mechanism (2) further includes a locking component (27), which is mounted on the third substrate (25) and is used to lock the third substrate (25) and the second substrate (24).

3. The horizontal adjustment system according to claim 1, characterized in that, The sealing support mechanism (4) also includes a sealing ring (43), and the sealing ring (43) is provided between the bellows (42) and the coarse adjustment mechanism (2) and between the bellows (42) and the vacuum chamber (1).

4. The horizontal adjustment system according to claim 1, characterized in that, At least two of the sealing support mechanisms (4) are provided at the bottom of each of the bearing plates (5).

5. The horizontal adjustment system according to claim 1, characterized in that, The fine adjustment mechanism (3) on which the first neutron aperture plate device (200) is installed is also provided with an X-axis adjustment component (6). The first neutron aperture plate device (200) is installed on the X-axis adjustment component (6), and the X-axis adjustment component (6) is used to adjust the position of the first neutron aperture plate device (200) in the X-axis direction.

6. The horizontal adjustment system according to claim 1, characterized in that, The second support plate (5) is also provided with a Y-axis adjustment component (7). The output end of the Y-axis adjustment component (7) is connected to the second neutron conduit device (500). The Y-axis adjustment component (7) is used to adjust the position of the second neutron conduit device (500) in the Y-axis direction.

Images