CN219320139U - Multi-sample automatic sampling device of X-ray fluorescence spectrometer - Google Patents
Multi-sample automatic sampling device of X-ray fluorescence spectrometer Download PDFInfo
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- CN219320139U CN219320139U CN202223469740.9U CN202223469740U CN219320139U CN 219320139 U CN219320139 U CN 219320139U CN 202223469740 U CN202223469740 U CN 202223469740U CN 219320139 U CN219320139 U CN 219320139U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to the technical field of detection, and particularly discloses a multi-sample automatic sampling device of an X-ray fluorescence spectrometer. The multi-sample automatic sampling device comprises a base, a turntable assembly, a spin driving assembly and a double-shaft driving assembly; the turntable assembly comprises a circular turntable and a plurality of sample cup seats; the upper end of the sample cup seat is coaxially connected with a spin gear; the spin driving assembly comprises a fixed seat, a first rotating shaft, a driving gear and an intermediate gear which are meshed with each other; the fixed seat is positioned in the central hole of the turntable and is connected with the base; the first rotating shaft is rotationally connected with the fixed seat, and the rotation central axis is collinear with the central axis of the turntable; the driving gear is coaxially connected with the first rotating shaft; the intermediate gears are rotatably arranged on the fixed seat and can be respectively meshed with the rotating gears; the double-shaft driving assembly can respectively provide power required by rotation for the first rotating shaft and the rotating disc. The sample detection consistency of the multi-sample automatic sampling device is good, the structure is compact, and the occupied space is small.
Description
Technical Field
The utility model relates to the technical field of detection, in particular to a multi-sample automatic sampling device of an X-ray fluorescence spectrometer.
Background
In the traditional X-ray fluorescence spectrometer, most of the X-ray fluorescence spectrometer can only detect a single sample, and the instrument needs to be frequently operated to take, place and change samples during use, so that the detection efficiency is low.
The patent with publication number CN203432925U discloses a sample tray, wherein a plurality of sample holes for placing sample cups are formed in a sample tray body; under the drive of motor, the sample dish body is rotatory to realize the rotatory detection sampling of a plurality of samples. Although the problem of low detection efficiency is solved to this sample dish, in the detection analysis in-process, the sample cup remains motionless all the time to lead to unable comprehensive detection to the sample, sample detection uniformity is relatively poor.
In addition, the existing sample injection device occupies a larger space, so that the space of the sample cavity is larger, and the time for vacuumizing the sample cavity is longer, thereby influencing the detection working efficiency.
Disclosure of Invention
The utility model aims to provide a multi-sample automatic sampling device of an X-ray fluorescence spectrometer, which has the advantages of good sample detection consistency, compact structure and small occupied space.
To achieve the purpose, the utility model adopts the following technical scheme:
a multi-sample autosampler for an X-ray fluorescence spectrometer, comprising:
a base;
the turntable assembly comprises a circular turntable and a plurality of sample cup seats for placing sample cups, wherein the turntable can rotate around the central axis of the turntable relative to the base and is provided with a plurality of mounting grooves at intervals along the circumferential direction; each sample cup seat is rotatably arranged in each mounting groove; the upper end of the sample cup seat extends out of the mounting groove and is coaxially connected with a spinning gear;
the spin driving assembly comprises a fixed seat, a first rotating shaft, and a driving gear and an intermediate gear which are meshed with each other; the fixed seat is positioned in the central hole of the turntable and is connected with the base; the first rotating shaft is rotationally connected with the fixed seat, and the rotation central axis is collinear with the central axis of the turntable; the driving gear is coaxially connected with the first rotating shaft; the intermediate gear is rotatably arranged on the fixed seat and can be meshed with each spinning gear respectively;
the double-shaft driving assembly can respectively provide power required by rotation for the first rotating shaft and the rotating disc.
Further, the double-shaft driving assembly comprises a central shaft seat, an intermediate connecting shaft and a first power source, wherein the central shaft seat is connected between the fixed seat and the base, and the intermediate connecting shaft is coaxially inserted with the first rotating shaft and is rotatably connected in the central shaft seat; the first power source can provide power required for rotation to the intermediate coupling shaft.
Further, the double-shaft driving assembly further comprises a second rotating shaft, a first gear, a second gear and a second power source which are meshed with each other; the second rotating shaft is parallel to the middle connecting shaft and is rotatably arranged on the base; the first gear is coaxially connected with the second rotating shaft, the second gear is rotationally connected to the central shaft seat, and the rotation central axis is collinear with the central axis of the turntable; the turntable is connected with the second gear through a turntable fixing plate.
Further, a plurality of first avoidance holes for exposing the sample cup seats and a plurality of second avoidance holes for exposing the center shaft seat are formed in the turntable fixing plate.
Further, the central shaft seat is rotatably sleeved with a first bearing seat through a first bearing, and the first bearing seat is connected with the first gear and is coaxially sleeved with a code wheel.
Further, the fixing seat is provided with a hollow cylindrical inner cavity with an open top surface, and the side wall of the cylindrical inner cavity is provided with an opening; the driving gear is positioned in the cylindrical inner cavity, the intermediate gear is positioned in the opening, and the side surface of the intermediate gear extends out of the outer end of the opening; the open end of the top surface of the fixing seat is connected with a fixing seat upper cover.
Further, the upper end of the first rotating shaft is rotatably connected with the upper cover of the fixing seat through a flange ball bearing.
Further, the turntable is connected with a turntable cover plate, and the turntable cover plate is positioned above each spin gear and provided with a plurality of third avoidance holes exposing each sample cup seat respectively; the center of the turntable cover plate is provided with a fourth avoidance hole for exposing the fixing seat.
The beneficial effects of the utility model are as follows: the multi-sample automatic sample injection device of the X-ray fluorescence spectrometer can realize sequential rotary sample injection of a plurality of samples, and the samples autorotate in the detection process, so that the detection consistency is good, the structure is compact, and the occupied space is small.
Drawings
Fig. 1 is a schematic perspective view of a multi-sample automatic sample injection device of an X-ray fluorescence spectrometer.
Fig. 2 is a cross-sectional view of a multi-sample autosampler for an X-ray fluorescence spectrometer provided by the present utility model.
Fig. 3 is an exploded schematic view of an automatic sample feeding device for multiple samples of an X-ray fluorescence spectrometer according to the present utility model.
Fig. 4 is a schematic structural view of the biaxial driving assembly in fig. 1.
Fig. 5 is a schematic view of the dual shaft drive assembly of fig. 1 at another angle.
Fig. 6 is a cross-sectional view of the dual shaft drive assembly of fig. 1.
Fig. 7 is a schematic diagram of the structure of the spin driving assembly of fig. 1.
Fig. 8 is a schematic view of the internal structure of the spin driving assembly of fig. 1.
Fig. 9 is a cross-sectional view of the spin drive assembly of fig. 1.
Fig. 10 is a schematic view of the turntable assembly of fig. 1.
Fig. 11 is a cross-sectional view of the turntable assembly of fig. 1.
Fig. 12 is a cross-sectional view of the sample cup holder of fig. 11.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 12, a multi-sample automatic sample injection device of an X-ray fluorescence spectrometer comprises a base 1, a turntable assembly 2, a spin driving assembly 3 and a biaxial driving assembly 4. The turntable assembly 2 comprises a circular turntable 21 and a plurality of sample cup seats 22 for placing the sample cups 5, wherein the turntable 21 can rotate around the central axis of the turntable relative to the base 1, and a plurality of mounting grooves are formed in a circumferential spacing manner; each sample cup seat 22 is rotatably installed in each installation groove; the upper end of the sample cup seat 22 extends out of the mounting groove and is coaxially connected with a spinning gear 23. The spin driving assembly 3 comprises a fixed seat 31, a first rotating shaft 32, a driving gear 33 and an intermediate gear 34 which are meshed with each other; the fixed seat 31 is positioned in the central hole of the turntable 21 and is connected with the base 1; the first rotating shaft 32 is rotationally connected with the fixed seat 31, and the rotation central axis is collinear with the central axis of the turntable 21; the driving gear 33 is coaxially connected with the first rotation shaft 32; the intermediate gears 34 are rotatably arranged on the fixed seat 31 and can be respectively meshed with the rotating gears 23; the dual-shaft driving assembly 4 is used for providing power required by rotation to the first rotating shaft 32 and the turntable 21 respectively.
Specifically, as shown in fig. 2 and 6, the dual-shaft driving assembly 4 includes a central shaft seat 41, an intermediate coupling shaft 42, and a first power source. The central shaft seat 41 is connected between the fixed seat 31 and the base 1, and the intermediate coupling shaft 42 is coaxially inserted with the first rotating shaft 32 and is rotatably connected in the central shaft seat 41 through the second bearing 441; the first power source is used to provide the power required for rotation to the intermediate coupling shaft 42. Preferably, two second bearings 441 are provided on the intermediate coupling shaft 42, and a first spacer 442 is provided between the two second bearings 441, which is sleeved on the intermediate coupling shaft 42. The first power source is preferably an electric motor.
When the sample cup holder is used, the first power source provides power, so that the intermediate connecting shaft 42 rotates relative to the central shaft seat 41, the first rotating shaft 32 is driven to rotate relative to the fixed seat 31, and the power is transmitted to the spin gear 23 positioned at the detection position through the meshing transmission between the driving gear 33 and the intermediate gear 34, so that the sample cup holder 22 rotates relative to the turntable 21, and the rotation of the sample in the detection process is realized.
Further, the dual-shaft driving assembly 4 further comprises a second rotating shaft 43, a first gear 44, a second gear 45 and a second power source which are meshed with each other. Wherein, the second rotating shaft 43 is parallel to the middle connecting shaft 42 and is rotatably arranged on the base 1; the first gear 44 is coaxially connected with the second rotating shaft 43, the second gear 45 is rotatably connected to the central shaft seat 41, and the central axis of rotation is collinear with the central axis of the turntable 21; the turntable 21 is connected to the second gear 45 through a turntable fixing plate 46. The turntable fixing plate 46 is provided with a plurality of first avoidance holes 461 for exposing the sample cup holders 22 and second avoidance holes for exposing the center shaft holder 41. The turntable fixing plate 46 and the turntable 21 can be installed and positioned by positioning pins.
When the rotary sample feeding device is used, the second power source provides power to enable the second rotating shaft 43 to rotate, and the power is transmitted to the rotary disc fixing plate 46 through meshing transmission between the first gear 44 and the second gear 45, so that the rotary disc fixing plate 46 and the rotary disc 21 rotate together relative to the base 1, and rotary sample feeding of a plurality of samples is achieved.
As shown in fig. 6, the central shaft seat 41 is rotatably sleeved with a first bearing seat 48 through a first bearing 47, and the first bearing seat 48 is connected with the first gear 44 and coaxially sleeved with a code wheel 49.
As shown in fig. 7-9, in the spin driving assembly 3, the fixing seat 31 has a hollow cylindrical inner cavity 311 with an open top surface, and an opening 312 is formed on the side wall of the cylindrical inner cavity 311; the driving gear 33 is positioned in the cylindrical inner cavity 311, the intermediate gear 34 is arranged in the opening 312 through the fourth bearing 341 and the bearing bracket, and the side surface extends out of the outer end of the opening 312; the top surface open end of the fixing base 31 is connected with a fixing base upper cover 35. Further, the first rotating shaft 32 is rotatably connected with the fixed seat 31 through a third bearing 321, the lower end of the first rotating shaft extends out of the fixed seat 31 to be spliced with the middle connecting shaft 42, and the upper end of the first rotating shaft is rotatably connected with the fixed seat upper cover 35 through a flange ball bearing 36.
The spin driving assembly 3 is assembled on the central shaft seat 41 through a locking screw, so that the spin driving assembly is convenient to assemble and disassemble.
As shown in fig. 10-12, the sample cup holder 22 is rotatably connected in the mounting groove through a fifth bearing 26, the spin gear 23 is coaxially connected to the top surface of the sample cup holder 22, the outer side of the sample cup holder 22 is further sleeved with a collar 25, and the collar 25 is located between the spin gear 23 and the upper end surface of the bearing 26 and used for limiting the bearing 26.
The turntable 21 is connected with a turntable cover plate 24, and the turntable cover plate 24 is positioned above the respective rotary gears 23 and provided with a plurality of third avoidance holes exposing each sample cup seat 22 respectively; a fourth avoidance hole 241 for exposing the fixing seat 31 is formed in the center of the turntable cover plate 24.
When the multi-sample automatic sample injection device of the X-ray fluorescence spectrometer is used, the second power source is used for providing power, so that the turntable 21 rotates according to the rhythm to drive each sample cup seat 22 and the sample cup 5 positioned in the sample cup seat 22 to sequentially enter the detection position; when the sample cup holder 22 reaches the detection position, the spinning gear 23 on the sample cup holder 22 is meshed with the intermediate gear 34; under the power action provided by the first power source, the intermediate gear 34 rotates to drive the meshed spin gear 23 to rotate, so that the rotation of the sample in the detection process is realized, the detection of the sample is comprehensive and good in consistency, the structure is compact, the occupied space is small, and the installation and maintenance are convenient.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (8)
1. Multiple sample autosampler of X-ray fluorescence spectrometer, its characterized in that includes:
a base (1);
the turntable assembly (2) comprises a circular turntable (21) and a plurality of sample cup seats (22) for placing sample cups (5), wherein the turntable (21) can rotate around the central axis of the turntable relative to the base (1) and is provided with a plurality of mounting grooves at intervals along the circumferential direction; each sample cup seat (22) is rotatably installed in each installation groove; the upper end of the sample cup seat (22) extends out of the mounting groove and is coaxially connected with a spin gear (23);
the spin driving assembly (3) comprises a fixed seat (31), a first rotating shaft (32), and a driving gear (33) and an intermediate gear (34) which are meshed with each other; the fixed seat (31) is positioned in the central hole of the turntable (21) and is connected with the base (1); the first rotating shaft (32) is rotationally connected with the fixed seat (31), and the rotation central axis is collinear with the central axis of the turntable (21); the driving gear (33) is coaxially connected with the first rotating shaft (32); the intermediate gear (34) is rotatably arranged on the fixed seat (31) and can be meshed with the spin gears (23) respectively;
and a biaxial driving assembly (4) capable of providing power required for rotation to the first rotating shaft (32) and the rotating disc (21), respectively.
2. The multiple sample automatic sampling device according to claim 1, wherein the dual-shaft driving assembly (4) comprises a central shaft seat (41), an intermediate coupling shaft (42) and a first power source, the central shaft seat (41) is connected between the fixed seat (31) and the base (1), the intermediate coupling shaft (42) is coaxially inserted with the first rotating shaft (32) and is rotatably connected in the central shaft seat (41); the first power source is capable of providing power required for rotation to the intermediate coupling shaft (42).
3. The multiple sample autosampler according to claim 2, characterized in that the biaxial drive assembly (4) further comprises a second spindle (43), a first gear (44) and a second gear (45) intermeshed, a second power source; the second rotating shaft (43) is parallel to the middle connecting shaft (42) and is rotatably arranged on the base (1); the first gear (44) is coaxially connected with the second rotating shaft (43), the second gear (45) is rotatably connected to the central shaft seat (41), and the rotation central axis is collinear with the central axis of the turntable (21); the turntable (21) is connected with the second gear (45) through a turntable fixing plate (46).
4. The multiple sample automatic sampling device according to claim 3, wherein the turntable fixing plate (46) is provided with a plurality of first avoidance holes (461) for exposing each sample cup (22) and a plurality of second avoidance holes for exposing the central shaft (41).
5. The multi-sample autosampler according to claim 3, characterized in that the central shaft seat (41) is rotatably sleeved with a first bearing seat (48) through a first bearing (47), and the first bearing seat (48) is connected with the first gear (44) and coaxially sleeved with a code wheel (49).
6. The multi-sample automatic sampling device according to claim 1, wherein the fixing seat (31) is provided with a hollow cylindrical inner cavity (311) with an open top surface, and an opening (312) is formed in the side wall of the cylindrical inner cavity (311); the driving gear (33) is positioned in the cylindrical inner cavity (311), the intermediate gear (34) is positioned in the opening (312), and the side surface of the intermediate gear extends out of the outer end of the opening (312); the open end of the top surface of the fixed seat (31) is connected with a fixed seat upper cover (35).
7. The multiple sample autosampler according to claim 6, characterized in that the upper end of the first rotating shaft (32) is rotatably connected with the fixed seat upper cover (35) through a flange ball bearing (36).
8. The multi-sample automatic sampling device according to claim 1, wherein the turntable (21) is connected with a turntable cover plate (24), the turntable cover plate (24) is positioned above each spinning gear (23), and a plurality of third avoidance holes exposing each sample cup seat (22) respectively are formed; the center of the turntable cover plate (24) is provided with a fourth avoidance hole (241) for exposing the fixed seat (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223469740.9U CN219320139U (en) | 2022-12-26 | 2022-12-26 | Multi-sample automatic sampling device of X-ray fluorescence spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223469740.9U CN219320139U (en) | 2022-12-26 | 2022-12-26 | Multi-sample automatic sampling device of X-ray fluorescence spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219320139U true CN219320139U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223469740.9U Active CN219320139U (en) | 2022-12-26 | 2022-12-26 | Multi-sample automatic sampling device of X-ray fluorescence spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219320139U (en) |
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2022
- 2022-12-26 CN CN202223469740.9U patent/CN219320139U/en active Active
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