CN117760555A

CN117760555A - Raman spectrometer accessory

Info

Publication number: CN117760555A
Application number: CN202311476483.8A
Authority: CN
Inventors: 陈鹏; 付永明; 马杰; 任泽乾; 孔维虎
Original assignee: Shanxi University
Current assignee: Shanxi University
Priority date: 2023-11-08
Filing date: 2023-11-08
Publication date: 2024-03-26

Abstract

The invention relates to the technical field of Raman spectrum detection, in particular to a Raman spectrometer accessory, which comprises: the sampling device comprises a sampling disc and a chassis, wherein the sampling disc is connected with a rotating mechanism; the chassis is connected with a moving mechanism, and a motor II and a fixed disc are arranged in the chassis; the beneficial effects are as follows: according to the invention, the rotary drum is driven to move through the movement of the block, so that the butt joint fixture block is meshed with the butt joint slotted hole, the motor II is started to drive the fixed disc to rotate, the rotating shaft drives the sun wheel to rotate, and then the support ring is driven to rotate in the support slot through the meshing of the planet wheel, the sun wheel and the teeth, so that the sampling disc is adjusted, the alignment block is aligned with the alignment slot, the Raman spectrum test probe is aligned with the sampling hole on the sampling disc conveniently, the subsequent butt joint and adjustment process is faster and more accurate, the depth of the Raman spectrum test probe inserted into the sampling hole is adjusted conveniently, and the detection accuracy is improved.

Description

Raman spectrometer accessory

Technical Field

The invention relates to the technical field of Raman spectrum detection, in particular to a Raman spectrometer accessory.

Background

Raman effect is found by indian physicist and refers to the phenomenon of the change in frequency of a light wave after it has been scattered. The light irradiates the substance to generate elastic scattering and inelastic scattering, the scattered light of the elastic scattering is Rayleigh scattered light which is the same as the wavelength of the excitation light, the scattered light of the inelastic scattering is Raman scattered light which is the component with the wavelength shorter than the excitation light and also has the component shorter than the excitation light, the Raman spectrum analysis method is an analysis method for analyzing the scattered spectrum with the frequency different from the excitation light to obtain information on the vibration and rotation of molecules, and the analysis method is applied to the molecular structure research, the frequency change of the scattered light depends on the characteristics of the scattered substance, the vibration mode of different atomic groups is unique, therefore, the scattered light with specific frequency can be generated, the spectrum is called as a fingerprint spectrum, and the molecular types of the component substances can be identified according to the principle. Therefore, raman spectroscopy is widely used for the identification and detection of biological, mineral, chemical substances. The Raman spectrometer based on the Raman spectrum analysis technology has good application prospects in the fields of food safety, biological medicine, public safety, material science, jewelry identification, geological prospecting, environment detection and the like.

The raman spectrum collection accessories sold in the market at present are mainly of fixed designs, and the positions of sample cells are fixed. The Raman spectrum acquisition accessory has the advantages that the universality is good, and the Raman spectrum acquisition accessory can be matched with Raman spectrometers of different types for use; the method comprises the steps of carrying out a first treatment on the surface of the In addition, the method can effectively reduce the purchase cost and the debugging cost of the user.

However, when the detection device detects samples in sample cells with different sizes or different shapes, the optimal measurement positions of the sample cells with different sizes or different shapes are different, the existing sample clamp needs to be removed firstly during measurement, a new sample cell is installed, and finally, the probe is regulated to reach the optimal measurement position, so that the phenomenon of inaccurate detection results caused by installation errors and regulation errors of the probe can occur during sampling detection.

Disclosure of Invention

The invention aims to provide a Raman spectrometer accessory, which solves the problem that when the detection device is used for detecting samples in sample tanks with different sizes or different shapes, the optimal measurement positions of the sample tanks with different sizes or different shapes are different, the existing sample clamp is required to be removed firstly during measurement, a new sample tank is installed, and finally, a probe is regulated to reach the optimal measurement position, so that the phenomenon that the detection result is inaccurate due to installation errors can occur during sampling detection.

In order to achieve the above purpose, the present invention provides the following technical solutions: a raman spectrometer accessory, the raman spectrometer accessory comprising:

the sampling device comprises a sampling disc, wherein one end of the sampling disc is provided with a rotating mechanism, the rotating mechanism comprises a rotary disc, the rotary disc is connected with a rotating shaft, two ends of the rotating shaft are respectively provided with a sun wheel and a rotary drum, planetary gears are distributed on the periphery of the side wall of one end of the sampling disc in an array manner, and the sampling disc is connected with a supporting ring;

the chassis is located one side of sampling dish, the chassis is connected with moving mechanism, moving mechanism includes motor one, the chassis wherein symmetry both sides are equipped with threaded rod and slide bar respectively, the inside of chassis is equipped with motor two and fixed disk, fixed disk outer wall circumference array distributes has a plurality of evenly distributed's butt joint fixture block.

Preferably, the movable groove has been seted up to the lateral wall in the middle of the chassis upper end, the movable groove has all been seted up to the both ends lateral wall of chassis about the movable groove symmetry, the standing groove has been seted up to the one end lateral wall of chassis, the standing groove is located one side of one of them movable groove, standing groove inner wall and motor one fixed connection, the diapire and the motor two fixed connection that the movable groove is close to motor one end, the output and the fixed disk fixed connection of motor two.

Preferably, the output end of the first motor penetrates through the inner wall between the placing groove and one of the movable grooves and is fixedly connected with one end of the threaded rod, the other end of the threaded rod is rotatably connected with the inner wall of the corresponding movable groove, and the inner walls of the two opposite ends of the other movable groove are fixedly connected with the two ends of the sliding rod.

Preferably, one end of the turntable is fixedly connected with moving blocks on two sides of the center symmetry of the rotating shaft, threaded holes and sliding holes are respectively formed in the side walls of the same end of the moving blocks, one moving block is in threaded connection with the threaded rod through the threaded holes, and the other moving block is in sliding connection with the sliding rod through the sliding holes.

Preferably, the outer wall of axis of rotation is fixed and rotate with the middle lateral wall of carousel and is connected, set up supporting groove and recess on the one end lateral wall that the chassis was kept away from to the carousel, the supporting groove is annular, the supporting groove is located the recess outside, the axis of rotation is located lateral wall and rotary drum fixed connection of movable block one side, set up the butt joint slotted hole of a plurality of circumference array on the outer wall of rotary drum, the butt joint slotted hole is connected with the butt joint fixture block meshing.

Preferably, the inner wall of the supporting groove is rotationally connected with the outer wall of the supporting ring, a plurality of teeth meshed with the planet gears are arranged on the side wall of the inner side of the groove, the planet gears are meshed with the sun gears, the planet gears are rotationally connected with the side wall of the bottom end of the sampling plate through rotating rods, and the sun gears are fixedly connected with one end of the rotating shaft, which is positioned in the groove.

Preferably, the sampling plate is close to the outer wall of one end of the chassis and all is equipped with the alignment piece all around, sampling plate diapire and supporting ring fixed connection, the supporting ring is located the planet wheel outside, the chassis has seted up the alignment groove in the middle of the one end inner wall of removal groove, the chassis is equipped with raman spectrum test probe in the one end of keeping away from the alignment groove.

Compared with the prior art, the invention has the beneficial effects that:

when testing samples in sample tanks with different sizes or different shapes, the existing sample clamp does not need to be removed, the position of the probe does not need to be adjusted any more, and the high-precision measurement of the samples in the sample tanks with different sizes or different shapes can be realized by using the second control rotary drum of the motor.

According to the invention, the first motor is started to drive the threaded rod to rotate, so that the moving block is driven to move in the movable groove, and simultaneously the other moving block synchronously slides on the sliding rod, so that the moving synchronism is ensured, and the stability of the moving block during moving can be further limited by the action of the sliding rod;

according to the invention, when the moving block moves, the rotary drum moves to one side of the motor II in the moving groove, in addition, when the moving block moves to the bottom end of the movable groove, the butt joint fixture block is meshed with the butt joint groove hole, at the moment, the motor II is started to drive the fixed disc to rotate, and then the sun wheel is driven to rotate through the rotary drum and the rotating shaft, and then the supporting ring is driven to rotate in the supporting groove through the meshed connection of the planet wheel, the sun wheel and the teeth, so that the sampling disc is regulated, the alignment block is aligned with the alignment groove, the Raman spectrum test probe is aligned with the sampling hole on the sampling disc conveniently, and the subsequent butt joint and regulation process are quicker and more accurate, so that the detection precision is increased.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a schematic view of the bottom structure of the sampling plate of the present invention;

FIG. 3 is a top view of the rotary mechanism of the present invention;

FIG. 4 is a schematic bottom view of the rotary mechanism of the present invention;

FIG. 5 is a schematic view of a base structure of the present invention;

fig. 6 is an enlarged schematic view of the structure of fig. 5 a according to the present invention.

In the figure: 1. a sampling plate; 11. an alignment block; 2. a chassis; 21. an alignment groove; 3. a moving mechanism; 31. a threaded hole; 32. a moving block; 33. a slide hole; 34. a movable groove; 35. a slide bar; 36. a placement groove; 37. a first motor; 38. a threaded rod; 4. a rotating mechanism; 41. a planet wheel; 42. a support ring; 43. a support groove; 44. teeth; 45. a groove; 46. a turntable; 47. a sun gear; 48. a rotating drum; 49. a butt joint slot; 410. a rotating shaft; 411. a moving groove; 412. a second motor; 413. butting clamping blocks; 414. a fixed plate; 5. raman spectrum test probe.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present invention more apparent, the embodiments of the present invention will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present invention, are intended to be illustrative only and not limiting of the embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 6, the present invention provides a technical solution: a raman spectrometer accessory, comprising:

the sampling device comprises a sampling disc 1, wherein one end of the sampling disc 1 is provided with a rotating mechanism 4, the rotating mechanism 4 comprises a rotary disc 46, the rotary disc 46 is connected with a rotating shaft 410, both ends of the rotating shaft 410 are respectively provided with a sun wheel 47 and a rotating drum 48, planetary gears 41 are distributed on the periphery of the side wall of one end of the sampling disc 1 in an array manner, and the sampling disc 1 is connected with a supporting ring 42;

the chassis 2 is located one side of sampling plate 1, and chassis 2 is connected with moving mechanism 3, and moving mechanism 3 includes motor one 37, and chassis 2 wherein symmetry both sides are equipped with threaded rod 38 and slide bar 35 respectively, and the inside of chassis 2 is equipped with motor two 412 and fixed disk 414, and fixed disk 414 outer wall circumference array distributes has a plurality of evenly distributed's butt joint fixture block 413.

The middle side wall of the upper end of the chassis 2 is provided with a movable slot 411, the side walls of the two symmetrical ends of the chassis 2 relative to the movable slot 411 are provided with movable slots 34, one end side wall of the chassis 2 is provided with a placing slot 36, the placing slot 36 is positioned on one side of one movable slot 34, the inner wall of the placing slot 36 is fixedly connected with a first motor 37, the bottom wall of the movable slot 34, which is close to one end of the first motor 37, is fixedly connected with a second motor 412, and the output end of the second motor 412 is fixedly connected with a fixed disc 414; the output end of the first motor 37 penetrates through the inner wall between the placing groove 36 and one of the movable grooves 34 and is fixedly connected with one end of a threaded rod 38, the other end of the threaded rod 38 is rotationally connected with the inner wall of the corresponding movable groove 34, and the inner walls of the opposite ends of the other movable groove 34 are fixedly connected with the two ends of the sliding rod 35; one end of the rotary table 46 is fixedly connected with moving blocks 32 on two sides of the central symmetry of the rotary shaft 410, the side walls of the same ends of the two moving blocks 32 are respectively provided with a threaded hole 31 and a sliding hole 33, one moving block 32 is in threaded connection with a threaded rod 38 through the threaded hole 31, and the other moving block 32 is in sliding connection with a sliding rod 35 through the sliding hole 33;

the first motor 37 is started to drive the threaded rod 38 to rotate, so that the moving block 32 is driven to move in the movable groove 34, and meanwhile, the other moving block 32 synchronously slides on the sliding rod 35, so that moving synchronism is ensured, and in addition, the stability of the moving block 32 in moving can be further limited through the action of the sliding rod 35.

The outer wall of the rotating shaft 410 is fixedly and rotatably connected with the middle side wall of the rotating disc 46, a supporting groove 43 and a groove 45 are formed in the side wall of one end, far away from the chassis 2, of the rotating disc 46, the supporting groove 43 is annular, the supporting groove 43 is positioned outside the groove 45, the side wall, positioned on one side of the moving block 32, of the rotating shaft 410 is fixedly connected with the rotating drum 48, a plurality of circumferential array butt joint groove holes 49 are formed in the outer wall of the rotating drum 48, and the butt joint groove holes 49 are in meshed connection with the butt joint clamping blocks 413; the inner wall of the supporting groove 43 is rotationally connected with the outer wall of the supporting ring 42, a plurality of teeth 44 meshed with the planet wheel 41 are arranged on the inner side wall of the groove 45, the planet wheel 41 is meshed with the sun wheel 47, the planet wheel 41 is rotationally connected with the bottom end side wall of the sampling disc 1 through a rotating rod, and the sun wheel 47 is fixedly connected with one end of the rotating shaft 410 positioned in the groove 45;

when the moving block 32 is moved, the rotary drum 48 moves to the second motor 412 side in the moving slot 411, in addition, when the moving block 32 moves to the bottom end of the movable slot 34, the second motor 412 is started to drive the fixed disk 414 to rotate, and then the rotary drum 48 and the rotary shaft 410 drive the sun gear 47 to rotate, and then the planetary gear 41 is connected with the sun gear 410 and the teeth 44 in a meshed manner to drive the support ring 42 to rotate in the support slot 43, so that the sampling disk 1 is adjusted.

The sampling dish 1 is close to the one end outer wall of chassis 2 all is equipped with around aligning piece 11, sampling dish 1 diapire and holding ring 42 fixed connection, holding ring 42 is located the planet wheel 41 outside, chassis 2 has seted up alignment groove 21 in the middle of the one end inner wall of movable slot 411, chassis 2 is equipped with raman spectrum test probe 5 in the one end of keeping away from alignment groove 21, after rotating sampling dish 1, through aligning alignment piece 11 with alignment groove 21 to conveniently make raman spectrum test probe 5 align with the sampling hole on the sampling dish 1, and then make follow-up butt joint and adjustment process more quick accuracy.

In actual use, the first motor 37 is started to drive the threaded rod 38 to rotate, then the movable block 32 is driven to move in the movable groove 34 through the action of the sliding rod 35, meanwhile, the rotary drum 48 is driven to move to one side of the second motor 412 in the movable groove 411, the butt joint clamping block 413 is meshed with the butt joint slotted hole 49 when the movable block 32 moves to the bottom end of the movable groove 34, the second motor 412 is started to drive the fixed disc 414 to rotate, then the rotary drum 48 and the rotary shaft 410 drive the sun gear 47 to rotate, then the planetary gear 41 is connected with the sun gear 410 and the teeth 44 to drive the supporting ring 42 to rotate in the supporting groove 43, so that the sampling disc 1 is regulated, and accurate positioning is realized according to the alignment block 11 and the alignment groove 21, finally, the first motor 37 is reversed, the rotary disc 46 is driven to move through the movable block 32, so that the Raman spectrum test probe 5 is inserted into a sampling hole on the sampling disc 1, and the depth of the Raman spectrum test probe 5 is regulated according to the requirement, so that the detection accuracy is increased.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A raman spectrometer accessory, characterized by: the raman spectrometer accessory includes:

the sampling disc (1), one end of sampling disc (1) is equipped with slewing mechanism (4), slewing mechanism (4) are including carousel (46), carousel (46) are connected with axis of rotation (410), the both ends of axis of rotation (410) are equipped with sun gear (47) and rotary drum (48) respectively, array distribution has planet wheel (41) all around the one end lateral wall of sampling disc (1), sampling disc (1) are connected with supporting ring (42);

chassis (2) are located one side of sampling dish (1), chassis (2) are connected with moving mechanism (3), moving mechanism (3) are including motor one (37), chassis (2) wherein symmetry both sides are equipped with threaded rod (38) and slide bar (35) respectively, the inside of chassis (2) is equipped with motor two (412) and fixed disk (414), fixed disk (414) outer wall circumference array distributes and has a plurality of evenly distributed's butt joint fixture block (413).

2. A raman spectrometer accessory according to claim 1, characterized in that: the utility model discloses a motor, including chassis (2), standing groove (36) are located one side of one of them movable groove (34), standing groove (36) inner wall and motor one (37) fixed connection, the diapire that movable groove (34) is close to motor one (37) one end and motor two (412) fixed connection, the output and fixed disk (414) fixed connection of motor two (412) are all offered to chassis (2) both ends lateral wall about the symmetry of movable groove (411), movable groove (411) have been offered to chassis (2) upper end middle lateral wall.

3. A raman spectrometer accessory according to claim 1, characterized in that: the output end of the motor I (37) penetrates through the inner wall between the placing groove (36) and one of the movable grooves (34) and is fixedly connected with one end of a threaded rod (38), the other end of the threaded rod (38) is rotatably connected with the inner wall of the corresponding movable groove (34), and the inner walls of the opposite ends of the other movable groove (34) are fixedly connected with the two ends of the sliding rod (35).

4. A raman spectrometer accessory according to claim 2, characterized in that: one end of the rotary table (46) is fixedly connected with moving blocks (32) on two sides of the central symmetry of the rotary shaft (410), threaded holes (31) and sliding holes (33) are respectively formed in the side walls of the same end of the two moving blocks (32), one moving block (32) is in threaded connection with a threaded rod (38) through the threaded holes (31), and the other moving block (32) is in sliding connection with a sliding rod (35) through the sliding holes (33).

5. A raman spectrometer accessory according to claim 1, characterized in that: the outer wall of axis of rotation (410) is fixed and rotate with the middle lateral wall of carousel (46) and is connected, set up supporting groove (43) and recess (45) on the one end lateral wall that chassis (2) was kept away from to carousel (46), supporting groove (43) are annular, supporting groove (43) are located the recess (45) outside, the lateral wall that axis of rotation (410) is located movable block (32) one side and rotary drum (48) fixed connection, set up a plurality of circumference array's butt joint slotted hole (49) on the outer wall of rotary drum (48), butt joint slotted hole (49) are connected with butt joint fixture block (413) meshing.

6. A raman spectrometer accessory according to claim 5, wherein: the inner wall of the supporting groove (43) is rotationally connected with the outer wall of the supporting ring (42), a plurality of teeth (44) meshed with the planet wheel (41) are arranged on the inner side wall of the groove (45), the planet wheel (41) is meshed with the sun wheel (47), the planet wheel (41) is rotationally connected with the bottom end side wall of the sampling disc (1) through a rotating rod, and the sun wheel (47) is fixedly connected with one end of the rotating shaft (410) inside the groove (45).

7. A raman spectrometer accessory according to claim 2, characterized in that: the utility model discloses a Raman spectrum test probe, including chassis (2), sampling disc (1), support ring (42), chassis (2), alignment groove (21) have been seted up in the middle of the one end inner wall of shifting chute (411), chassis (2) are equipped with Raman spectrum test probe (5) in the one end of keeping away from alignment groove (21) around all being equipped with alignment piece (11) around the one end outer wall that sampling disc (1) is close to chassis (2), sampling disc (1) diapire and support ring (42) fixed connection, support ring (42) are located planet wheel (41) outside.