Adjusting mechanism of adjustable multi-receiver for an isotope magnetic mass spectrometer

Abstract

The present invention belongs to the technical field of isotope analysis, and specifically discloses an adjustable adjustment mechanism for a multi-receiver of an isotope magnetic mass spectrometer. The adjustment mechanism includes: an adjustment mechanism base, on which a suppression terminal, an output terminal, a plurality of sliding connecting rods, a plurality of transition connecting rods and a plurality of connecting blocks are installed; the sliding connecting rods and the transition connecting rods are used for installing Faraday cups; the suppression terminal is used for wire routing and fixing, and the output terminal is used for suppression grid wire routing; a connecting block for connecting with an electric bellows adjusting rod is provided at the end of the transition connecting rod. The adjustable adjustment mechanism of the present invention is simple to install and adjust, has good effects, and is low in cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of isotope analysis, and particularly relates to an adjustable multi-receiver adjusting mechanism for an isotope magnetic mass spectrometer. Background Art

[0002] An adjustable multi-receiver is a key device in a mass spectrometer. It can perform mass spectrometry analysis according to the types and quantities of ions received and detected. An adjustable multi-receiver of a mass spectrometer generally consists of a receiver cylinder, a stepping motor, a Faraday cup holder, a transition connecting rod, a linkage mechanism, a graphite Faraday cup, etc. Generally, in order to meet different usage requirements, when detecting more than two components simultaneously, the receiver is designed with different numbers of Faraday cups.

[0003] The direction focusing line of a common sector magnetic mass spectrometer is a curve. Therefore, its Faraday cups are arranged in different planes, and its adjusting mechanism is complicated and occupies a large space, increasing the difficulty of sealing and vacuum pumping. Although some foreign instruments are optimized through theoretical design to arrange the Faraday cups in the same spatial plane, the adjustment of its Faraday cups still needs to be achieved through a complicated transmission adjustment mechanism, and the processing of related products such as its positioning gold flakes is extremely difficult. Summary of the Invention

[0004] The purpose of the present invention is to provide an adjustable multi-receiver adjusting mechanism for a same-plane linear isotope magnetic mass spectrometer, aiming at the defects that the ion receivers of existing thermal ionization mass spectrometers need to be installed in a slantwise arrangement in different planes, which occupies a large installation space, has a complicated adjustment structure and a high manufacturing cost. The adjusting mechanism is simple to install and adjust, has a good effect, and is low in cost.

[0005] The technical solution for achieving the purpose of the present invention is as follows: An adjustable multi-receiver adjusting mechanism for an isotope magnetic mass spectrometer, the adjusting mechanism comprising: an adjusting mechanism base, on which a suppression terminal, an output terminal, a plurality of sliding connecting rods, a plurality of transition connecting rods and a plurality of connecting blocks are installed; the sliding connecting rods and the transition connecting rods are used for installing Faraday cups; the suppression terminal is used for wire routing and fixing, and the output terminal is used for suppressing grid wire routing; the end of the transition connecting rod is provided with a connecting block for connecting with an electric bellows adjusting rod.

[0006] The sliding connecting rod is fixedly connected to the upper part of the Faraday cup, and the transition connecting rod is fixedly connected to the lower part of the Faraday cup.

[0007] The adjusting mechanism base includes a fine adjuster support A and a fine adjuster support B arranged on both sides of the Faraday cup.

[0008] The suppression terminal and the output terminal are respectively installed on both sides of the tops of the fine adjuster support A and the fine adjuster support B.

[0009] The sliding link described above includes a sliding link A and a sliding link B. The sliding link A and the sliding link B are installed on the upper part of the fine-tuner support A and the fine-tuner support B, and are located between the suppression terminal and the output terminal.

[0010] The transition link described above is installed in the middle of the fine-tuner support A and the fine-tuner support B.

[0011] The transition link described above includes five transition links on the left side and five transition links on the right side.

[0012] The L-shaped long end of the transition link is connected to the corresponding electric bellows adjusting rod through a link block, and the L-shaped short end of the transition link is fixedly connected to the Faraday cup through a screw.

[0013] The five transition links on the left side include an L1 transition link, an L2 transition link, an L3 transition link, an L4 transition link, and an L5 transition link. The five transition links on the right side include an R1 transition link, an R2 transition link, an R3 transition link, an R4 transition link, and an R5 transition link.

[0014] The five transition links on the left side, namely the L1 transition link, the L2 transition link, the L3 transition link, the L4 transition link, and the L5 transition link, are respectively installed at the bottoms of the L1 Faraday cup, the L2 Faraday cup, the L3 Faraday cup, the L4 Faraday cup, and the L5 Faraday cup, and are used to control and adjust the positions of the respective Faraday cups.

[0015] The five transition links on the right side, namely the R1 transition link, the R2 transition link, the R3 transition link, the R4 transition link, and the R5 transition link, are respectively installed at the bottoms of the R1 Faraday cup, the R2 Faraday cup, the R3 Faraday cup, the R4 Faraday cup, and the R5 Faraday cup, and are used to control and adjust the positions of the respective Faraday cups.

[0016] The threaded holes in the middle of the sliding link A and the sliding link B are used to install the fixed Faraday cup in the middle.

[0017] The sliding link A and the sliding link B penetrate through the upper part of the Faraday cup, and both ends are inserted into the side walls of the fine-tuner support A and the fine-tuner support B.

[0018] The link block includes five link blocks on the left side, namely the L2 link block, the Lx link block, the L3 link block, the L4 link block, and the L5 link block, and five link blocks on the right side, namely the R2 link block, the R1 link block, the R3 link block, the R4 link block, and the R5 link block.

[0019] The five link blocks on the left side, namely, one ends of the L2 link block, L1 link block, L3 link block, L4 link block, and L5 link block are respectively connected to the L1 transition link rod, L2 transition link rod, L3 transition link rod, L4 transition link rod, and L5 transition link rod, and the other ends of the L2 link block, L1 link block, L3 link block, L4 link block, and L5 link block are connected to the electric bellows adjusting rod for adjusting the Faraday cup of the multi-receiver of the mass spectrometer.

[0020] The five link blocks on the right side, namely, one ends of the R2 link block, R1 link block, R3 link block, R4 link block, and R5 link block are respectively connected to the L1 transition link rod, L2 transition link rod, L3 transition link rod, L4 transition link rod, and L5 transition link rod, and the other ends of the R2 link block, R1 link block, R3 link block, R4 link block, and R5 link block are connected to the electric bellows adjusting rod for adjusting the Faraday cup of the multi-receiver of the mass spectrometer.

[0021] The beneficial technical effects of the present invention are as follows:

[0022] (1) For the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer of the present invention, the adjustable Faraday cup is adjusted by connecting the external electric bellows adjusting rod through the transition link rod. The shape and size of the transition link rod are different according to the positions of different Faraday cups. There are four L-shaped and one straight-shaped on both sides, effectively avoiding mutual collision during adjustment.

[0023] (2) For the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer of the present invention, all the Faraday cups are in the same plane. Compared with the prior art, it is convenient for the installation and adjustment of each component, has a simple structure, occupies a small space, and avoids the difficulty of vacuum pumping caused by large volume.

[0024] (3) For the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer of the present invention, compared with the prior art, it has a simple structure, low cost, convenient installation and high precision, and has a good mechanical structure. Description of the Drawings

[0025] Figure 1 It is a structural diagram of the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer provided by the present invention;

[0026] Figure 2 It is a schematic structural diagram of the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer provided by the present invention;

[0027] Figure 3 It is a schematic structural diagram of the fine adjustment support of the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer provided by the present invention;

[0028] Figure 4Schematic diagram of the sliding link structure provided by the present invention;

[0029] Figure 5 Schematic diagram of the transition link rod structure provided by the present invention;

[0030] Figure 6 Schematic diagram of the output terminal structure provided by the present invention;

[0031] Figure 7 Schematic diagram of the suppression terminal structure provided by the present invention.

[0032] In the figure: 1. Fine-tuning support A, 2. Fine-tuning support B, 3. Suppression terminal, 4. Output terminal, 5. Sliding link A, 6. Sliding link B, 7. L1 transition link rod, 8. L2 transition link rod, 9. L3 transition link rod, 10. L4 transition link rod, 11. L5 transition link rod, 12. R1 transition link rod, 13. R2 transition link rod, 14. R3 transition link rod, 15. R4 transition link rod, 16. R5 transition link rod, 17. L2 link block, 18. L1 link block, 19. L3 link block, 20. L4 link block, 21. L5 link block, 22. R2 link block, 23. R1 link block, 24. R3 link block, 25. R4 link block, 26. R5 link block, 27. L1 Faraday cup, 28. L2 Faraday cup, 29. L3 Faraday cup, 30. L4 Faraday cup, 31. L5 Faraday cup, 32. Fixed Faraday cup, 33. R1 Faraday cup, 34. R2 Faraday cup, 35. R3 Faraday cup, 36. R4 Faraday cup, 37. R5 Faraday cup. Detailed implementation manners

[0033] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0034] As Figure 1 and Figure 2 shown, an adjustment mechanism for an adjustable multi-receiver of an isotope magnetic mass spectrometer according to the present invention includes a fine-tuning support A1, a fine-tuning support B2, a suppression terminal 3, an output terminal 4, a sliding link A5, a sliding link B6, an L1 transition link rod 7, an L2 transition link rod 8, an L3 transition link rod 9, an L4 transition link rod 10, an L5 transition link rod 11, an R1 transition link rod 12, an R2 transition link rod 13, an R3 transition link rod 14, an R4 transition link rod 15, an R5 transition link rod 16, an L2 link block 17, an L1 link block 18, an L3 link block 19, an L4 link block 20, an L5 link block 21, an R2 link block 22, an R1 link block 23, an R3 link block 24, an R4 link block 25, and an R5 link block 26.

[0035] The structure of the adjusting mechanism base of the multi-receiver is as shown in the appendix Figure 1 and Figure 3 shown. The adjusting mechanism base is composed of a fine adjuster support A1 and a fine adjuster support B2. Both the fine adjuster support A1 and the fine adjuster support B2 are integrally processed. Four threaded holes are opened at the lower ends of the fine adjuster support A1 and the fine adjuster support B2, and they are fixed to the bottom of the receiver cylinder by screws. Two threaded holes are opened directly above the fine adjuster support A1 and the fine adjuster support B2, and the suppression terminal 3 and the output terminal 4 are respectively fixed and installed by screws. Two round holes are opened above the side panels of the fine adjuster support A1 and the fine adjuster support B2, which are respectively used to install the sliding link A5 and the sliding link B6. Five round holes are respectively opened in the middle of the side panels of the fine adjuster support A1 and the fine adjuster support B2, which are respectively used to install the transition link rods; the five round holes in the middle of the side panel of the fine adjuster support A1 are respectively used to install the R1 transition link rod 12, the R2 transition link rod 13, the R3 transition link rod 14, the R4 transition link rod 15, and the R5 transition link rod 16; the five round holes in the middle of the side panel of the fine adjuster support B2 are respectively used to install the L1 transition link rod 7, the L2 transition link rod 8, the L3 transition link rod 9, the L4 transition link rod 10, and the L5 transition link rod 11.

[0036] The sliding link A5 and the sliding link B6 have the same size, and their structure is as shown in the appendix Figure 4 、 Figure 1 、 Figure 2 shown. Both ends of the sliding link A5 and the sliding link B6 are threaded structures. Their two ends respectively pass through the side panels of the fine adjuster support A1 and the fine adjuster support B2, and are fixed between the fine adjuster support A1 and the fine adjuster support B2 by nuts. Threaded holes are opened in the middle of the sliding link A5 and the sliding link B6 for installing the middle fixed Faraday cup 32. The sliding link A5 and the sliding link B are required to have high machining accuracy and high polish so that the friction is small when the Faraday cup slides on them. Their height depends on the requirements of the spatial position distribution of the ion beam current.

[0037] The structure of the transition link rod is as shown in the appendix Figure 5 、 Figure 1 、 Figure 3As shown. The size and structure vary according to the different Faraday cups controlled and adjusted. The L-shaped long end of the transition link rod is connected to the corresponding electric bellows adjusting rod through a link block, and the L-shaped short end of the transition link rod is fixedly connected to the Faraday cup through screws. Its specific length depends on the position of the Faraday cup and the dimensional limitations between them. This design has a simple structure and cleverly avoids collisions between Faraday cups during adjustment. Five transition link rods on the left and right respectively control five Faraday cups on the left and right. The five transition link rods on the left, namely the L1 transition link rod 7, L2 transition link rod 8, L3 transition link rod 9, L4 transition link rod 10, and L5 transition link rod 11, respectively adjust and control the positions of the five Faraday cups on the left, namely the L1 Faraday cup 27, L2 Faraday cup 28, L3 Faraday cup 29, L4 Faraday cup 30, and L5 Faraday cup 31; the five transition link rods on the right, namely the R1 transition link rod 12, R2 transition link rod 13, R3 transition link rod 14, R4 transition link rod 15, and R5 transition link rod 16, respectively adjust and control the positions of the five Faraday cups on the right, namely the R1 Faraday cup 33, R2 Faraday cup 34, R3 Faraday cup 35, R4 Faraday cup 36, and R5 Faraday cup 37.

[0038] The structures of the output terminal 3 and the suppression terminal 4 are as shown in the appendix Figure 6 , appendix Figure 7 As shown. The lengths of the output terminal 3 and the suppression terminal 4 depend on the distance between the trimmer support A 1 and the trimmer support B2. The suppression terminal 4 is of a cuboid structure with 18 through holes evenly opened in the middle for suppressing the fixation of the grid traces. A 20-mm-wide groove is left in the middle of the output terminal 3, which is the reserved position for installing the electron multiplier. Six through holes are respectively opened on both sides of the output terminal 3 for wire routing fixation. The suppression terminal 4 has 18 through holes for wire routing fixation. All edges of the output terminal 3 and the suppression terminal 4 are rounded to prevent wire damage.

[0039] As Figure 1 and Figure 2As shown in the figure, the process of adjusting the multi-receiver by using the adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer provided by the present invention is as follows: Fix the fixed Faraday cup 32 on the sliding link A5 and the sliding link B6 through the slotted flat-end set screw, and then respectively fix and connect the L1 transition link 7 and the L1 Faraday cup 27, the L2 transition link 8 and the L2 Faraday cup 28, the L3 transition link 9 and the L3 Faraday cup 29, the L4 transition link 10 and the L4 Faraday cup 30, the L5 transition link 11 and the L5 Faraday cup 31, the R1 transition link 12 and the R1 Faraday cup 33, the R2 transition link 13 and the R2 Faraday cup 34, the R3 transition link 14 and the R3 Faraday cup 35, the R4 transition link 15 and the R4 Faraday cup 36, the R5 transition link 16 and the R5 Faraday cup 37 in sequence through the cross-slot countersunk head screws.

[0040] After the installation is completed, pass the L1 Faraday cup 27, the L2 Faraday cup 28, the L3 Faraday cup 29, the L4 Faraday cup 30, and the L5 Faraday cup 31 through the L ends of the sliding link A5 and the sliding link B6 respectively. Pass the R1 Faraday cup 33, the R2 Faraday cup 34, the R3 Faraday cup 35, the R4 Faraday cup 36, and the R5 Faraday cup 37 through the R ends of the sliding rod A5 and the sliding link B6 respectively.

[0041] Pass the L1 transition link 7, the L2 transition link 8, the L3 transition link 9, the L4 transition link 10, and the L5 transition link 11 through the corresponding round holes on the side panel of the fine adjuster support A1 respectively, and then fix them at one end of the R2 link block 22, the R1 link block 23, the R3 link block 24, the R4 link block 25, and the R5 link block 26 respectively with the internal hexagon socket head cap screws. Pass the R1 transition link 12, the R2 transition link 13, the R3 transition link 14, the R4 transition link 15, and the R5 transition link through the corresponding round holes on the side panel of the fine adjuster support B2 respectively, and then fix them at one end of the L2 link block 17, the L1 link block 18, the L3 link block 19, the L4 link block 20, and the L5 link block 21 respectively with the internal hexagon socket head cap screws. The other ends of the link blocks are used for subsequent fixed connection with the electric bellows adjusting rod for adjustment.

[0042] Fix the sliding link A5 and the sliding link B6 between the fine adjuster support A1 and the fine adjuster support B2 through the hexagon nuts, and fix the suppression terminal 4 and the output terminal 3 on the fine adjuster support A1 and the fine adjuster support B2 through the internal hexagon socket head cap screws.

[0043] The adjustable multi-receiver adjusting mechanism of the isotope magnetic mass spectrometer provided by the present invention has been processed and successfully applied to the thermal ionization mass spectrometer. After testing, its receiving adjustment performance is good.

[0044] The present invention has been described in detail above in conjunction with the accompanying drawings and embodiments. The above embodiments are only the optimal embodiments of the present invention. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. An adjustable multi-receiver adjusting mechanism for an isotope magnetic mass spectrometer, characterized in that: The adjustment mechanism includes: an adjustment mechanism base, on which a suppression terminal (3), an output terminal (4), a plurality of sliding link rods, a plurality of transition link rods, and a plurality of link blocks are installed; the sliding link rods and the transition link rods are used for installing a Faraday cup; the suppression terminal (3) is used for routing and fixing, and the output terminal (4) is used for suppressing grid routing; the end of the transition link rod is provided with a link block for connecting with an electric bellows adjusting rod.

2. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 1, characterized in that: The sliding link rod is fixedly connected to the upper part of the Faraday cup, and the transition link rod is fixedly connected to the lower part of the Faraday cup.

3. The adjustable multi-receiver adjusting mechanism of an isotope magnetic mass spectrometer according to claim 2, characterized in that: The adjustment mechanism base includes a fine adjuster support A (1) and a fine adjuster support B (2) arranged on both sides of the Faraday cup.

4. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 3, characterized in that: On the top sides of the fine adjuster support A (1) and the fine adjuster support B (2), a suppression terminal (3) and an output terminal (4) are respectively installed.

5. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 4, characterized in that: The sliding link rod includes a sliding link rod A (5) and a sliding link rod B (6), and the sliding link rod A (5) and the sliding link rod B (6) are installed on the upper parts of the fine adjuster support A (1) and the fine adjuster support B (2), and are located between the suppression terminal (3) and the output terminal (4).

6. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 5, characterized in that: The transition link rod is installed in the middle of the fine adjuster support A (1) and the fine adjuster support B (2).

7. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 6, characterized in that: The transition link rod includes five transition link rods on the left side and five transition link rods on the right side.

8. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 7, characterized in that: The L-shaped long end of the transition link rod is connected to the corresponding electric bellows adjusting rod through a link block, and the L-shaped short end of the transition link rod is fixedly connected to the Faraday cup through a screw.

9. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 8, wherein: The five transition link rods on the left side include an L1 transition link rod (7), an L2 transition link rod (8), an L3 transition link rod (9), an L4 transition link rod (10), and an L5 transition link rod (11), and the five transition link rods on the right side include an R1 transition link rod (12), an R2 transition link rod (13), an R3 transition link rod (14), an R4 transition link rod (15), and an R5 transition link rod (16).

10. The adjustable multi-receiver adjusting mechanism of an isotope magnetic mass spectrometer according to claim 9, characterized in that: The five transition link rods on the left side, namely the L1 transition link rod (7), the L2 transition link rod (8), the L3 transition link rod (9), the L4 transition link rod (10), and the L5 transition link rod (11), are respectively installed at the bottoms of the L1 Faraday cup (27), the L\alpha Faraday cup (28), the L3 Faraday cup (29), the L4 Faraday cup (30), and the L5 Faraday cup (31) to control and adjust the positions of the respective Faraday cups.

11. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 10, wherein: The five transition link rods on the right side, namely the R1 transition link rod (12), the R2 transition link rod (13), the R3 transition link rod (14), the R4 transition link rod (15), and the R5 transition link rod (16), are respectively installed at the bottoms of the R1 Faraday cup (33), the R2 Faraday cup (34), the R3 Faraday cup (35), the R4 Faraday cup (36), and the R5 Faraday cup (37) to control and adjust the positions of the respective Faraday cups.

12. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 11, characterized in that: The threaded holes in the middle of the sliding link rod A (5) and the sliding link rod B (6) are used for installing the middle fixed Faraday cup (32).

13. The adjustable multi-receiver adjusting mechanism of an isotope magnetic mass spectrometer according to claim 12, wherein: The described sliding link A (5) and sliding link B (6) penetrate through the upper part of the Faraday cup, and both ends are inserted into the side walls of the fine adjuster support A (1) and the fine adjuster support B (2).

14. An adjustable multi-receiver adjusting mechanism for an isotope magnetic mass spectrometer according to claim 13, characterized in that: The described link block includes five link blocks (22) on the left, namely the L2 link block (17), the L1 link block (18), the L3 link block (19), the L4 link block (20), the L5 link block (21), and five link blocks (22) on the right, namely the R2 link block (22), the R1 link block (23), the R3 link block (24), the R4 link block (25), the R5 link block (26).

15. The adjustable multi-receiver adjusting mechanism of an isotope magnetic mass spectrometer according to claim 14, wherein: One end of the five link blocks (22) on the left, namely the L2 link block (17), the L1 link block (18), the L3 link block (19), the L4 link block (20), the L5 link block (21), is respectively connected to the L1 transition link rod (7), the L2 transition link rod (8), the L3 transition link rod (9), the L4 transition link rod (10), the L5 transition link rod (11), and the other end of the L2 link block (17), the L1 link block (18), the L3 link block (19), the L4 link block (20), the L5 link block (21) is connected to the electric bellows adjusting rod for the adjustment of the Faraday cup of the multi-receiver of the mass spectrometer.

16. The adjusting mechanism of the adjustable multi-receiver of an isotope magnetic mass spectrometer according to claim 15, characterized in that: One end of the five link blocks (22) on the right, namely the R2 link block (22), the R1 link block (23), the R3 link block (24), the R4 link block (25), the R5 link block (26), is respectively connected to the L1 transition link rod (7), the L2 transition link rod (8), the L3 transition link rod (9), the L4 transition link rod (10), the L5 transition link rod (11), and the other end of the R2 link block (22), the R1 link block (23), the R3 link block (24), the R4 link block (25), the R5 link block (26) is connected to the electric bellows adjusting rod for the adjustment of the Faraday cup of the multi-receiver of the mass spectrometer.

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