Novel cable-stayed slit for X-ray diffractometer

Abstract

The utility model discloses a novel cable-stayed slit for an X-ray diffractometer, which comprises a first thick metal plate, a second thick metal plate, a plurality of groups of metal foils, a plurality of groups of cable-stayed slit gaskets and a tension bolt, and the plurality of groups of metal foils are arranged between the first thick metal plate and the second thick metal plate at equal intervals. A set of cable-stayed slit gaskets are arranged between every two adjacent metal foils, the two cable-stayed slit gaskets are arranged at the upper ends and the lower ends of the metal foils correspondingly, and the first thick metal plate, the second thick metal plate, the multiple sets of metal foils and the multiple sets of cable-stayed slit gaskets are connected and fixed through tensioning bolts; the tension bolts penetrate through the first thick metal plate, the second thick metal plate, the multiple sets of metal foils and the multiple sets of cable-stayed slit gaskets to connect and combine the first thick metal plate, the second thick metal plate, the multiple sets of metal foils and the multiple sets of cable-stayed slit gaskets, and compared with a cable-stayed slit of an existing diffractometer which is mostly formed by bonding metal foils through glue, the cable-stayed slit has the advantages of being easy to install, firm and durable.

Description

Technical Field

[0001] The utility model relates to the technical field of X-ray diffractometers, and specifically relates to a novel Soller slit for an X-ray diffractometer. Background Art

[0002] X-ray diffraction utilizes the diffraction principle to accurately determine the crystal structure, texture and stress of substances, and accurately conduct phase analysis, qualitative analysis and quantitative analysis. It is widely used in the fields of metallurgy, petroleum, chemical industry, scientific research, aerospace, teaching, material production, etc.

[0003] During the use of an X-ray diffractometer, it is necessary to perform specific optimization on the light beam emitted by the X-ray tube, especially to limit the divergence of the light beam along the focal spot direction to improve the resolution of the obtained X-ray diffraction spectrum. The device or part for achieving this purpose is called a Soller slit. Its basic principle is to place a group of metal foils perpendicular to the focal spot and parallel to each other in the light beam. Thus, the direction of the light is roughly parallel to the metal foils, and its divergence is determined by the length of the metal foils and the distance between them. Usually, a pair of Soller slits are used in a diffractometer and are respectively placed at the outlet of the light source and in front of the detector, so they are very important components in the diffractometer.

[0004] At present, most of the Soller slits of diffractometers on the market are made by bonding metal foils with glue, which has the problems of complex manufacturing process and poor durability. Therefore, it is necessary to design a novel Soller slit for an X-ray diffractometer that is simple to manufacture, strong and durable to improve the above problems. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a novel Soller slit for an X-ray diffractometer. By connecting and combining a tensioning bolt through a first thick metal plate, a second thick metal plate, multiple groups of metal foils and multiple groups of Soller slit gaskets, it has the advantages of simple installation, strength and durability.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel Soller slit for an X-ray diffractometer includes a first thick metal plate, a second thick metal plate, multiple groups of metal foils, multiple groups of Soller slit gaskets and a tensioning bolt. The multiple groups of metal foils are arranged at equal intervals between the first thick metal plate and the second thick metal plate. A group of Soller slit gaskets are arranged between two adjacent metal foils. A group of Soller slit gaskets are provided with two, which are respectively placed at the upper and lower ends of the metal foil. The first thick metal plate, the second thick metal plate, the multiple groups of metal foils and the multiple groups of Soller slit gaskets are connected and fixed through the tensioning bolt. A positioning structure is arranged between the first thick metal plate, the second thick metal plate, the multiple groups of metal foils and the multiple groups of Soller slit gaskets.

[0008] Preferably, four countersunk holes distributed in a rectangular shape are provided on the first thick metal plate, threaded holes are provided on the second thick metal plate at the positions corresponding to the countersunk holes, a first through hole is provided on the metal foil at the position corresponding to the countersunk holes, a second through hole is provided on the cable slit gasket at the position corresponding to the countersunk holes, and the tensioning bolt passes through the countersunk holes, the first through hole, the second through hole and the threaded hole to connect and fix them.

[0009] Preferably, four groups of the tension bolts are provided.

[0010] Preferably, the positioning structure includes first positioning strips arranged at upper and lower ends of the first thick metal plate close to the metal foil and a second positioning groove opened on the side of the Sola slit gasket close to the first thick metal plate, and the first positioning strip can be inserted into the second positioning groove.

[0011] Preferably, the positioning structure also includes a first positioning groove opened at the upper and lower ends of the second thick metal plate close to the metal foil and a second positioning strip arranged on the side of the Sola slit gasket close to the second thick metal plate, and the second positioning strip can be inserted into the first positioning groove and the second positioning groove in an aligned manner.

[0012] Preferably, both upper and lower ends of the metal foil are provided with through slots for the first positioning strip and the second positioning strip to pass through.

[0013] Preferably, the first positioning bar and the second positioning bar have the same size, and the first positioning groove and the second positioning groove have the same size.

[0014] Preferably, the insertion ends of the first positioning strip and the second positioning strip are both chamfered.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model connects and assembles a first thick metal plate, a second thick metal plate, a plurality of metal foils and a plurality of Cable slit gaskets by tightening bolts through them. Compared with the existing Cable slits of diffractometers which are mostly made of metal foils bonded with glue, the utility model has the advantages of simple installation and durability.

[0017] (2) The utility model provides a positioning structure between the first thick metal plate, the second thick metal plate, the multiple groups of metal foils and the multiple groups of Sola slit gaskets, so as to locate the assembly position between the first thick metal plate, the second thick metal plate, the multiple groups of metal foils and the multiple groups of Sola slit gaskets, thereby preventing position displacement during assembly and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a new type of Soller slit for X-ray diffractometer;

[0019] Figure 2 Schematic diagram of the split structure of the Soller slit for a new type of X-ray diffractometer;

[0020] Figure 3 Schematic diagram of the three-dimensional structure of the first thick metal plate;

[0021] Figure 4 Schematic diagram of the three-dimensional structure of the second thick metal plate;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the metal foil;

[0023] Figure 6 Schematic diagram of the first perspective structure of the Soller slit gasket;

[0024] Figure 7 Schematic diagram of the second perspective structure of the Soller slit gasket.

[0025] In the figure: 1. The first thick metal plate; 101. Counterbore; 102. The first positioning strip; 2. The second thick metal plate; 201. Threaded hole; 202. The first positioning groove; 3. Metal foil; 301. The first through hole; 302. Through slot; 4. Soller slit gasket; 401. The second through hole; 402. The second positioning groove; 403. The second positioning strip; 5. Tightening bolt. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment:

[0028] Please refer to Figures 1-7, this embodiment provides a novel Soller slit for an X-ray diffractometer, which includes a first thick metal plate 1, a second thick metal plate 2, multiple groups of metal foils 3, multiple groups of Soller slit gaskets 4, and tension bolts 5. The multiple groups of metal foils 3 are arranged at equal intervals between the first thick metal plate 1 and the second thick metal plate 2. A group of Soller slit gaskets 4 is arranged between two adjacent metal foils 3. A group of Soller slit gaskets 4 has two gaskets respectively placed at the upper and lower ends of the metal foil 3. The first thick metal plate 1, the second thick metal plate 2, the multiple groups of metal foils 3, and the multiple groups of Soller slit gaskets 4 are connected and fixed by the tension bolts 5. In this embodiment, the thickness of the first thick metal plate 1 and the second thick metal plate 2 is about 2 mm, the thickness of the metal foil 3 is about 0.05 mm, and the thickness of the Soller slit gasket 4 is 0.2 - 1 mm. The thickness of the Soller slit gasket 4 can be defined according to needs. The metal foil 3, the first thick metal plate 1, and the second thick metal plate 2 have the same dimensions, and the length of the Soller slit gasket 4 is the same as the length of the metal foil 3. The above-mentioned components are processed using a laser cutting process, and the processing quantity is determined by the length of the Soller slit. It should be noted that the inner sides of the first thick metal plate 1 and the second thick metal plate 2 are both close to a metal foil 3. The number of multiple groups of metal foils 3 is one more than the number of multiple groups of Soller slit gaskets 4. The tension bolts 5 pass through the first thick metal plate 1, the second thick metal plate 2, the multiple groups of metal foils 3, and the multiple groups of Soller slit gaskets 4 to connect and combine them. Compared with the current Soller slits of diffractometers, most of which bond metal foils with glue, it has the advantages of simple installation, firmness, and durability.

[0029] In this embodiment, as Figures 2-6 shown, four counterbored holes 101 distributed in a rectangular shape are opened on the first thick metal plate 1. Threaded holes 201 are opened on the second thick metal plate 2 corresponding to the counterbored holes 101. First through holes 301 are opened on the metal foil 3 corresponding to the counterbored holes 101. There are four first through holes 301. Second through holes 401 are opened on the Soller slit gasket 4 corresponding to the counterbored holes 101. There are two second through holes 401 on each Soller slit gasket 4. The tension bolts 5 pass through the counterbored holes 101, the first through holes 301, the second through holes 401, and the threaded holes 201 to connect and fix them. There are four groups of tension bolts 5. By setting the positions of the counterbored holes 101, the threaded holes 201, the first through holes 301, and the second through holes 401 to correspond, the tension bolts 5 can pass through in sequence, which is used to quickly connect and combine the first thick metal plate 1, the second thick metal plate 2, the multiple groups of metal foils 3, and the multiple groups of Soller slit gaskets 4 for installation. The structure is simple, the assembly is convenient, and by setting four groups of tension bolts 5 for symmetric connection, the stability is good.

[0030] In order to avoid position deviation during the assembly of the first thick metal plate 1, the second thick metal plate 2, multiple groups of metal foils 3, and multiple groups of Soller slit gaskets 4, in this embodiment, a positioning structure is provided between the first thick metal plate 1, the second thick metal plate 2, multiple groups of metal foils 3, and multiple groups of Soller slit gaskets 4, which is used to position the assembly positions among the first thick metal plate 1, the second thick metal plate 2, multiple groups of metal foils 3, and multiple groups of Soller slit gaskets 4.

[0031] In this embodiment, as Figure 3 , Figure 4 , Figure 6 and Figure 7 shown, the positioning structure includes first positioning strips 102 provided at the upper and lower ends on the side of the first thick metal plate 1 close to the metal foils 3 and second positioning grooves 402 opened on the side of the Soller slit gasket 4 close to the first thick metal plate 1. The first positioning strips 102 are integrally formed with the first thick metal plate 1, and the first positioning strips 102 can be inserted into the second positioning grooves 402 in alignment. The positioning structure further includes first positioning grooves 202 opened at the upper and lower ends on the side of the second thick metal plate 2 close to the metal foils 3 and second positioning strips 403 provided on the side of the Soller slit gasket 4 close to the second thick metal plate 2. The second positioning strips 403 are integrally formed with the Soller slit gasket 4, and the second positioning strips 403 can be inserted into the first positioning grooves 202 and the second positioning grooves 402 in alignment. When assembling the Soller slit gasket 4 with the first thick metal plate 1 and the second thick metal plate 2, a group of Soller slit gaskets 4 close to the first thick metal plate 1 and the first thick metal plate 1 are positioned and assembled by inserting the first positioning strips 102 into the second positioning grooves 402, and a group of Soller slit gaskets 4 close to the second thick metal plate 2 and the second thick metal plate 2 are positioned and assembled by inserting the second positioning strips 403 into the first positioning grooves 202 in alignment. Adjacent two groups of Soller slit gaskets 4 are positioned and assembled by inserting the second positioning strips 403 into the second positioning grooves 402 in alignment, which is used to avoid the installation position deviation among the first thick metal plate 1, the second thick metal plate 2, and multiple groups of Soller slit gaskets 4.

[0032] In this embodiment, as Figure 5 shown, through slots 302 for the first positioning strips 102 and the second positioning strips 403 to pass through are opened at the upper and lower ends of the metal foils 3. During assembly, by passing the first positioning strips 102 and the second positioning strips 403 through the through slots 302 on the metal foils 3, the installation position of the metal foils 3 is positioned.

[0033] In this embodiment, the first positioning strips 102 and the second positioning strips 403 have the same size, the first positioning grooves 202 and the second positioning grooves 402 have the same size, and the insertion ends of the first positioning strips 102 and the second positioning strips 403 are both chamfered.

[0034] A novel Soller slit for an X-ray diffractometer provided by the utility model is connected and combined by a tensioning bolt 5 passing through a first thick metal plate 1, a second thick metal plate 2, multiple groups of metal foils 3 and multiple groups of Soller slit gaskets 4. Compared with the Soller slits of current diffractometers, most of which are bonded with metal foils using glue, it has the advantages of simple installation and durability. Moreover, a positioning structure is provided between the first thick metal plate 1, the second thick metal plate 2, multiple groups of metal foils 3 and multiple groups of Soller slit gaskets 4 to position the assembly positions among the first thick metal plate 1, the second thick metal plate 2, multiple groups of metal foils 3 and multiple groups of Soller slit gaskets 4, preventing position deviation during assembly and improving product quality.

[0035] The above embodiments are the preferred implementation schemes of the utility model. In addition, the utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the utility model.

Claims

1. A novel Soller slit for X-ray diffractometer, characterized in that: The invention comprises a first thick metal plate (1), a second thick metal plate (2), a plurality of groups of metal foils (3), a plurality of groups of cable slit gaskets (4) and a tensioning bolt (5); the plurality of groups of metal foils (3) are arranged at equal intervals between the first thick metal plate (1) and the second thick metal plate (2); a group of cable slit gaskets (4) is arranged between two adjacent metal foils (3); a group of cable slit gaskets (4) is provided with two respectively arranged at the upper and lower ends of the metal foils (3); the first thick metal plate (1), the second thick metal plate (2), the plurality of groups of metal foils (3) and the plurality of groups of cable slit gaskets (4) are connected and fixed by tensioning bolts (5); and a positioning structure is arranged between the first thick metal plate (1), the second thick metal plate (2), the plurality of groups of metal foils (3) and the plurality of groups of cable slit gaskets (4).

2. The novel Soller slit for X-ray diffractometer according to claim 1, characterized in that: The first thick metal plate (1) is provided with four countersunk holes (101) distributed in a rectangular shape, the second thick metal plate (2) is provided with threaded holes (201) corresponding to the countersunk holes (101), the metal foil (3) is provided with a first through hole (301) corresponding to the countersunk hole (101), the cable slit gasket (4) is provided with a second through hole (401) corresponding to the countersunk hole (101), and the tensioning bolt (5) passes through the countersunk hole (101), the first through hole (301), the second through hole (401) and the threaded hole (201) to connect and fix them.

3. The novel Soller slit for X-ray diffractometer according to claim 2, characterized in that: The tension bolts (5) are provided in four groups.

4. The novel Soller slit for X-ray diffractometer according to claim 1, characterized in that: The positioning structure comprises a first positioning strip (102) arranged at the upper and lower ends of a first thick metal plate (1) close to a metal foil (3) and a second positioning groove (402) opened on a side of a cable slit gasket (4) close to the first thick metal plate (1), wherein the first positioning strip (102) can be inserted into the second positioning groove (402) in an aligned manner.

5. The novel Soller slit for X-ray diffractometer according to claim 4, characterized in that: The positioning structure also includes a first positioning groove (202) provided at the upper and lower ends of a side of the second thick metal plate (2) close to the metal foil (3) and a second positioning strip (403) provided on a side of the cable slit gasket (4) close to the second thick metal plate (2), wherein the second positioning strip (403) can be inserted into the first positioning groove (202) and the second positioning groove (402) in a aligned manner.

6. The novel Soller slit for X-ray diffractometer according to claim 5, characterized in that: The upper and lower ends of the metal foil (3) are both provided with through slots (302) for the first positioning strip (102) and the second positioning strip (403) to pass through.

7. The novel Soller slit for X-ray diffractometer according to claim 6, characterized in that: The first positioning strip (102) and the second positioning strip (403) have the same size, and the first positioning groove (202) and the second positioning groove (402) have the same size.

8. The novel Soller slit for X-ray diffractometer according to claim 7, characterized in that: The insertion ends of the first positioning strip (102) and the second positioning strip (403) are both chamfered.

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