CN216747502U - X-ray fluorescence spectrometer with teaching function - Google Patents
X-ray fluorescence spectrometer with teaching function Download PDFInfo
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- CN216747502U CN216747502U CN202122806817.6U CN202122806817U CN216747502U CN 216747502 U CN216747502 U CN 216747502U CN 202122806817 U CN202122806817 U CN 202122806817U CN 216747502 U CN216747502 U CN 216747502U
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Abstract
An X-ray fluorescence spectrometer with a teaching function comprises a sample measuring panel, a sample stage capable of being positioned, an X-ray tube, a camera shooting mechanism, a secondary absorption sheet, an absorption sheet seat, a detector, a combined sample box and a shell, wherein a mounting cavity is arranged in the shell, the sample measuring panel, the sample stage capable of being positioned, the X-ray tube, the camera shooting mechanism, the secondary absorption sheet, the absorption sheet seat, the detector and the combined sample box are arranged in the mounting cavity, a sampling door and an outer adjusting button are arranged on the shell, the outer adjusting button is connected with the sample stage capable of being positioned, the sample stage capable of being positioned is arranged on the sample measuring panel through a first sliding device, the combined sample box is arranged on the sample stage capable of being positioned, the absorption sheet seat is arranged on the sample measuring panel, the secondary absorption sheet is arranged on the absorption sheet seat, the X-ray tube is provided with an emission port, the camera shooting mechanism and the secondary absorption sheet are arranged opposite to the combined sample box, the detector is provided with a detecting head, and the secondary absorption sheet covers the detecting head. Can safely and efficiently perform experiments.
Description
Technical Field
The utility model discloses an X-ray fluorescence spectrometer with a teaching function, and belongs to the technical field of X-ray fluorescence experiment teaching equipment.
Background
The X-ray is an electromagnetic wave with extremely high frequency, extremely short wavelength and large energy. The substance is irradiated by primary X-ray and can be excited to produce secondary X-ray, the secondary X-ray is also called X-ray fluorescence, it only contains characteristic X-ray, and has no continuous X-ray, and by utilizing said characteristic it can make X-ray fluorescence analysis, i.e. it utilizes the primary X-ray to excite atom in the sample to be tested, and can produce X-ray fluorescence to make substance component analysis. The X-ray fluorescence analysis involves equipment including an X-ray fluorescence spectrometer.
However, while using X-rays, it has been found that when X-rays are irradiated to a living body, biological cells are inhibited, destroyed, or even necrosed, resulting in various changes in physiological, pathological, and biochemical aspects of the body. The consequences of X-ray injury include hair loss, skin burns, vision disorders, and leukemia. While applying X-rays, care should be taken to take precautions.
The protective measures include shielding of X-rays, which is the property of a material of matter to absorb X-rays. In order to effectively and reasonably shield X-rays by a substance material, the "absorption coefficient" of the substance material to the X-rays needs to be tested, and therefore, an absorption sheet needs to be manufactured, and the absorption sheet has the function of absorbing the X-rays. The absorption sheet is made of a specific substance material, the absorption effect of the constituent elements of the absorption sheet on X-ray photons lower than the absorption limit of the element is obvious, the intensity of the X-rays after penetrating the absorption sheet is weakened, the intensity of the X-rays received by the detector after being absorbed by the absorption sheet is changed by changing the thickness of the absorption sheet made of the same substance material, and the 'absorption coefficient' of the substance material making up the absorption sheet on the X-rays is calculated through a formula.
Testing the "absorption coefficient" of a calculated material of matter for X-rays relates to the X-ray absorption experimental apparatus on which the absorption sheet is disposed. The current X-ray absorption experiment equipment is inconvenient for replacing the absorption sheet, for example, some X-ray absorption experiment equipment fixes the absorption sheet on the X-ray absorption experiment equipment by using a screw.
In order to popularize scientific and technical knowledge better, students need to have an opportunity to visit or perform relevant experiments. However, in the current industrial X-ray fluorescence equipment, under the general condition, the energy penetrating power is strong, radiation protection needs to be done at a high cost, even if the radiation protection needs to be done, when a person approaches, a disease risk also exists, and meanwhile, the equipment is high in cost and inconvenient to use for teaching. In addition, in the existing X-ray fluorescence teaching equipment, the experimental samples of different elements have different shapes or sizes, so that the taking is inconvenient, the taking is time-consuming and the samples are easy to lose. In addition, some existing X-ray fluorescence teaching equipment cannot accurately move and position the region to be analyzed on the surface of the experimental sample, and some equipment can be positioned but is inconvenient to operate.
Disclosure of Invention
Aiming at the problem that the X-ray fluorescence equipment in the prior art is inconvenient for teaching and using, the utility model provides an X-ray fluorescence spectrometer with a teaching function,
the technical scheme adopted by the utility model for solving the technical problems is as follows: an X-ray fluorescence spectrometer with a teaching function comprises a sample measuring panel, a sample stage capable of being positioned, an X-ray tube, a camera shooting mechanism, a secondary absorption sheet, an absorption sheet seat, a detector, a combined sample box and a shell, wherein a mounting cavity is arranged in the shell, the sample measuring panel, the sample stage capable of being positioned, the X-ray tube, the camera shooting mechanism, the secondary absorption sheet, the absorption sheet seat, the detector and the combined sample box are arranged in the mounting cavity, a sampling door and an outer adjusting button are arranged on the shell, the outer adjusting button is connected with the sample stage capable of being positioned, the sample stage capable of being positioned is arranged on the sample measuring panel through a first sliding device, the combined sample box is arranged on the sample stage capable of being positioned, the absorption sheet seat is arranged on the sample measuring panel, and the secondary absorption sheet is arranged on the absorption sheet seat, the X-ray tube is provided with an emitting port, the camera shooting mechanism and the secondary absorption sheet are arranged opposite to the combined sample box, the detector is provided with a detection head, and the secondary absorption sheet covers the detection head.
The technical scheme adopted by the utility model for solving the technical problem further comprises the following steps:
in order to facilitate replacement of the secondary absorption sheet, a placing opening and a placing cavity are formed in the absorption sheet seat, the secondary absorption sheet is placed in the placing cavity through the placing opening, a first ray channel is further formed in the absorption sheet seat and communicated with the placing cavity, the secondary absorption sheet covers an inlet of the first ray channel, and the detection head is arranged at an outlet of the first ray channel.
In order to realize the positioning function of the sample platform capable of being positioned, the sample platform capable of being positioned comprises a sample middle plate, a sample upper plate, a transverse moving mechanism and a longitudinal moving mechanism, the longitudinal moving mechanism is arranged on the sample measuring panel, the longitudinal moving mechanism is fixedly connected with the sample middle plate, the longitudinal moving mechanism drives the sample middle plate to move in the front-back direction relative to the sample measuring panel, the sample upper plate is arranged on the sample middle plate through a second sliding device, the transverse moving mechanism is arranged on the sample middle plate, the transverse moving mechanism is fixedly connected with the sample upper plate, the transverse moving mechanism drives the sample upper plate to move in the left-right direction relative to the sample middle plate, and the combined sample box is arranged on the sample upper plate.
In order to facilitate the experiment of experimental samples of different elements, the combined sample box comprises a box body and experimental samples, wherein the box body is cylindrical, the box body is divided into a plurality of sector positions by taking the circle center of the box body as the center, the sizes of the experimental samples are matched with the sector positions, and the experimental samples are fixedly installed in the sector positions.
In order to realize the function that the longitudinal movement mechanism drives the sample middle plate is relative to the front and back directions of the sample measuring panel, the longitudinal movement mechanism comprises a longitudinal movement support, a longitudinal movement screw rod, a longitudinal movement coupler and a longitudinal movement linkage rod, the longitudinal movement support is installed on the sample measuring panel, the longitudinal movement screw rod is installed on the longitudinal movement support, a longitudinal movement nut matched with the longitudinal movement screw rod thread is sleeved on the longitudinal movement screw rod, the longitudinal movement nut is fixedly connected with the sample middle plate, one end of the longitudinal movement coupler is fixedly connected with one end of the longitudinal movement screw rod, and the other end of the longitudinal movement coupler is fixedly connected with one end of the longitudinal movement linkage rod.
In order to realize the function that the transverse moving mechanism drives the sample upper plate to move in the left-right direction relative to the sample middle plate, the transverse moving mechanism comprises a transverse moving support, a transverse moving screw rod, a bevel gear rack, a bevel gear shaft, a transmission connecting sleeve, a transverse moving coupler and a transverse moving linkage rod, the transverse moving support and the bevel gear rack are installed on the sample middle plate, the transverse moving screw rod is installed on the transverse moving support, a transverse moving nut matched with the thread of the transverse moving screw rod is sleeved on the transverse moving screw rod and fixedly connected with the sample upper plate, the bevel gear shaft is installed on the bevel gear rack, the transverse moving screw rod and the bevel gear shaft are vertically arranged, a first bevel gear is arranged at one end of the transverse moving screw rod facing the bevel gear shaft, a second bevel gear matched with the first bevel gear is arranged on the bevel gear shaft, and the first bevel gear is meshed with the second bevel gear, the fixed end of the bevel gear shaft is fixedly connected with the transmission connecting sleeve, a spline barrel is arranged in the transmission connecting sleeve, a spline shaft is arranged in the spline barrel and can slide in the spline barrel, one end of the transverse coupler is fixedly connected with one end of the spline shaft, and the other end of the transverse coupler is fixedly connected with one end of the transverse linkage rod.
In order to facilitate the installation and the position alignment of the experimental sample, the box body is divided into a plurality of fan-shaped positions in an equal amount, the experimental sample is fan-shaped in cross section, and one side surface of the experimental sample is connected with the fan-shaped positions through curing adhesive.
In order to realize the function that the camera shooting mechanism can collect the image information of the experimental sample, the camera shooting mechanism comprises a reflective mirror, a camera and a camera seat, the camera seat is installed on the sample measuring panel, the camera is installed on the camera seat, the reflective mirror is installed on the absorbing sheet seat, the reflective mirror is arranged opposite to the sample table which can be positioned, and the camera is arranged opposite to the reflective mirror.
In order to enhance the irradiation effect of primary X-rays on an experimental sample, a second ray channel is arranged on the sample measurement panel, the second ray channel is opposite to the emission port, a collimation unit is further installed on the sample measurement panel, a third ray channel is arranged inside the collimation unit, and the third ray channel is communicated with the second ray channel.
In order to realize the sliding function of the first sliding device and the second sliding device, the first sliding device is a first cross roller guide rail, one mounting surface of the first cross roller guide rail is fixedly connected with the sample middle plate, the other mounting surface of the first cross roller guide rail is fixedly connected with the sample measuring panel, the second sliding device is a second cross roller guide rail, one mounting surface of the second cross roller guide rail is fixedly connected with the sample upper plate, and the other mounting surface of the second cross roller guide rail is fixedly connected with the sample middle plate.
In the orientation description of the present invention, the judged background is that when the X-ray fluorescence spectrometer with the teaching function is normally used, the upper part of the figure 5 is taken as the front, and the left side is taken as the left.
The present invention refers to the absorption plate placed between the X-ray tube and the experimental sample as primary absorption plate and the present invention refers to the absorption plate placed between the experimental sample and the detector as secondary absorption plate.
The beneficial effects of the utility model are: the X-ray teaching experiment instrument and the X-ray fluorescence spectrometer are integrated, so that a material composition analysis experiment can be performed, and an experiment for testing the absorption coefficient of a material to X-rays can be performed; the arrangement of the placing cavity inside the absorption sheet seat enables the absorption sheet to be quickly replaced; the combined sample box combines various experimental samples together and marks the samples, and a special placing position is designed, so that the experimental samples can be quickly replaced; the sample platform that can fix a position can carry out accurate removal location to the experimental sample outside the sample storehouse, makes the experimental sample remove in two orthogonal directions on the horizontal plane, has reached safe efficient experiment effect.
The utility model will be further described with reference to the drawings and the following detailed description.
Drawings
FIG. 1 is a schematic diagram showing the internal structural components of a preferred embodiment of an X-ray fluorescence spectrometer with teaching function according to the present invention;
FIG. 2 is a schematic view of the entirety of a preferred embodiment of an X-ray fluorescence spectrometer with teaching capabilities of the present invention;
FIG. 3 is a schematic view of a section A-A of FIG. 2;
FIG. 4 is a schematic view of a side door of a preferred embodiment of an X-ray fluorescence spectrometer with teaching function according to the present invention;
FIG. 5 is a schematic diagram of an adjustment mechanism of a preferred embodiment of an X-ray fluorescence spectrometer with teaching capabilities according to the present invention;
FIG. 6 is a schematic view of the installation of the traverse fastening screw of the preferred embodiment of the X-ray fluorescence spectrometer with teaching function of the present invention;
FIG. 7 is a schematic view of a cross section B-B of FIG. 6;
FIG. 8 is a schematic view of a combined sample cell of a preferred embodiment of an X-ray fluorescence spectrometer with teaching capabilities according to the present invention;
FIG. 9 is a schematic diagram of a sample placement position of a preferred embodiment of an X-ray fluorescence spectrometer with teaching capabilities of the present invention;
FIG. 10 is a schematic view of an absorption sheet holder of a preferred embodiment of an X-ray fluorescence spectrometer with teaching function according to the present invention;
FIG. 11 is a schematic view of a reflector of a preferred embodiment of an X-ray fluorescence spectrometer with teaching function according to the present invention.
Reference numerals: 1-main body, 11-front door, 12-sample panel, 121-second ray channel, 122-second positioning opening, 13-side door, 2-sample bin, 21-upper cover, 22-sampling door, 3-sample stage capable of positioning, 31-sample middle plate, 32-sample upper plate, 321-limiting part, 322-sample placement position, 33-second cross roller guide, 34-first cross roller guide, 4-X-ray tube, 41-primary absorption sheet, 42-collimation unit, 421-third ray channel, 5-high voltage power supply, 6-detector, 61-secondary absorption sheet, 62-absorption sheet seat, 621-first ray channel, 622-placement cavity, 623-placement opening, 624-reflector frame, 625-first positioning opening, 626-first mounting hole, 7-combined sample box, 71-box body, 72-experimental sample, 8-adjusting mechanism, 81-lateral moving mechanism, 811-traverse bracket, 812-traverse screw, 8121-traverse nut, 8122-traverse nut clamp, 8123-traverse nut clamp plate, 8124-traverse fixing plate, 8125-traverse fastening screw, 813-bevel gear rack, 814-bevel gear shaft, 815-transmission connecting sleeve, 8151-spline barrel, 8152-spline shaft, 8153-traverse coupler, 816-first bevel gear, 817-second bevel gear, 818-traverse linkage rod, 819-traverse outer adjusting button, 82-longitudinal moving mechanism, 821-longitudinal moving bracket, 822-longitudinal moving screw, 8221-longitudinal moving nut, 8222-longitudinal moving nut clamp, 8223-longitudinal moving nut clamp plate, 8224-longitudinal moving fixing plate, 8225-longitudinal moving fastening screw, 823-longitudinal moving coupler, 824-longitudinal moving linkage rod, 825-longitudinal moving outer adjusting button, 91-reflector, 92-camera, 93-camera head seat.
Detailed Description
The present embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same as or similar to the present embodiment are within the scope of the present invention.
The utility model relates to an X-ray fluorescence spectrometer with a teaching function, which can be seen in figures 1 to 11 in a preferred embodiment and comprises a sample measuring panel 12, a sample table 3 capable of being positioned, an X-ray tube 4, a camera mechanism, a secondary absorption sheet 61, an absorption sheet seat 62, a detector 6, a combined sample box 7, a shell and a high-voltage power supply 5. The shell is internally provided with an installation cavity, and a sample measuring panel 12, a sample table 3 capable of being positioned, an X-ray tube 4, a camera shooting mechanism, a secondary absorption sheet 61, an absorption sheet seat 62, a detector 6, a combined sample box 7 and a high-voltage power supply 5 are installed in the installation cavity.
The casing includes lower cover and upper cover 21, and the lower cover is located the upper cover 21 below, and the inside first installation cavity that is provided with of lower cover, the inside second installation cavity that is provided with of upper cover 21, and upper cover 21 installs under and covers, and first installation cavity and second installation cavity lock are in the same place, and first installation cavity is linked together with the second installation cavity, and first installation cavity and second installation cavity form the installation cavity. The sample measuring panel 12, the X-ray tube 4, the camera mechanism, the secondary absorption sheet 61, the absorption sheet seat 62, the detector 6 and the high-voltage power supply 5 are positioned in the first mounting cavity, the upper part of the sample stage 3 which can be positioned is positioned in the second mounting cavity, the lower part of the sample stage 3 which can be positioned is positioned in the first mounting cavity, and the combined sample box 7 is positioned in the second mounting cavity.
The upper cover 21 is provided with a sampling door 22, the upper cover 21 and the sampling door 22 form a sample bin 2, the sampling door 22 can be opened, and the sample bin 2 is used for placing the combined sample box 7. The lower cover is provided with a front door 11 and two side doors 13, and the number of the side doors 13 is two. The main body 1 comprises a lower cover, a front door 11, a side door 13, a sample measuring panel 12, a sample table 3 capable of being positioned, an X-ray tube 4, a camera mechanism, a secondary absorption sheet 61, an absorption sheet seat 62, a detector 6 and a high-voltage power supply 5. An outer adjusting button is further arranged on the lower cover and connected with an adjusting mechanism 8, and the adjusting mechanism 8 is connected with the sample table 3 capable of being positioned. The outer adjustment knobs include a lateral outer adjustment knob 819 and a longitudinal outer adjustment knob 825. The adjusting mechanism 8 includes a traverse mechanism 81 and a longitudinal moving mechanism 82, a traverse outer adjusting button 819 is connected to the traverse mechanism 81, and a longitudinal moving outer adjusting button 825 is connected to the longitudinal moving mechanism 82.
The high-voltage power supply 5 is connected with the X-ray tube 4 through a lead, and the high-voltage power supply 5 is arranged at the lower part of the first installation cavity. The camera shooting mechanism and the absorbing sheet seat 62 are arranged on the sample measuring panel 12, the sample table 3 capable of being positioned is positioned above the sample measuring panel 12, and the sample table 3 capable of being positioned is used for placing an experimental sample needing to be subjected to a material component analysis experiment. The experimental sample to be subjected to the material composition analysis experiment is provided as a combined sample box 7, and the combined sample box 7 is mounted on the sample table 3 capable of being positioned.
The sample platform 3 capable of positioning comprises a sample middle plate 31, a sample upper plate 32, a transverse moving mechanism 81 and a longitudinal moving mechanism 82, wherein the sample middle plate 31 is installed on a sample measurement panel 12 through a first sliding device, the longitudinal moving mechanism 82 is arranged on the sample measurement panel 12, the longitudinal moving mechanism 82 is fixedly connected with the sample middle plate 31, the longitudinal moving mechanism 82 drives the sample middle plate 31 to move in the front-back direction relative to the sample measurement panel 12, the sample upper plate 32 is installed on the sample middle plate 31 through a second sliding device, the transverse moving mechanism 81 is arranged on the sample middle plate 31, the transverse moving mechanism 81 is fixedly connected with the sample upper plate 32, the transverse moving mechanism 81 drives the sample upper plate 32 to move in the left-right direction relative to the sample middle plate 31, and the combined sample box 7 is installed in the middle position of the sample upper plate 32. The sample upper plate 32 can be moved left and right by operating the transverse moving mechanism 81, and the sample middle plate 31 can be moved back and forth by operating the longitudinal moving mechanism 82, so that the experimental sample in the combined sample box 7 can be accurately moved and positioned, and the experimental sample can move in two orthogonal directions of a horizontal plane.
In this embodiment, in order to facilitate the front-back sliding between the sample middle plate 31 and the sample measurement panel 12, the first sliding device is a first cross roller guide rail 34, the first cross roller guide rail 34 is arranged in the front-back direction, one mounting surface of the first cross roller guide rail 34 is fixedly connected with the sample middle plate 31, the other mounting surface of the first cross roller guide rail 34 is fixedly connected with the sample measurement panel 12, the first sliding device may also adopt a splicing structure of two linear guide rails, or the sample middle plate 31 is provided with a slide rail, and the sample measurement panel 12 is provided with a slide block structure matched with the slide rail for the front-back sliding.
In this embodiment, the traversing mechanism 81 includes a traversing support 811, a traversing screw 812, a bevel gear rack 813, a bevel gear shaft 814 and a transmission connecting sleeve 815, the traversing support 811 and the bevel gear rack 813 are installed on the sample middle plate 31, the traversing support 811 and the bevel gear rack 813 are arranged in parallel, the traversing screw 812 is installed on the traversing support 811, a traversing nut 8121 matched with the traversing screw 812 in thread is sleeved on the traversing screw 812, the traversing nut 8121 is fixedly connected with the sample upper plate 32, the bevel gear shaft 814 is installed on the bevel gear rack 813, the traversing screw 812 and the bevel gear shaft 814 are arranged in perpendicular to each other, a first bevel gear 816 is arranged on one end of the traversing screw 812 facing the bevel gear shaft 814, a second bevel gear 817 matched with the first bevel gear 816 is arranged on the bevel gear shaft 814, the first bevel gear 816 is meshed with the second bevel gear 817, a fixed end of the bevel gear shaft 814 is fixedly connected with the transmission connecting sleeve 815, a spline barrel 8151 is arranged in the transmission connecting sleeve 815, the transmission connecting sleeve 815 and the spline barrel 8151 can adjust the axial position of each other and lock the transmission connecting sleeve 815 and the spline barrel 8151, a spline shaft 8152 is arranged in the spline barrel 8151, the spline shaft 8152 can slide in the spline barrel 8151, and the spline shaft 8152 and the spline barrel 8151 cannot rotate relatively so as to adjust the extending amount of the spline shaft 8152 outside the spline barrel 8151, so that the connection between the transverse movement mechanism 81 and the transverse movement outer adjusting button 819 on the housing is facilitated. The spline shaft 8152 is rotated to drive the spline cylinder 8151 and the transmission connecting sleeve 815 to rotate, the transmission connecting sleeve 815 drives the bevel gear shaft 814 to rotate, the second bevel gear 817 on the bevel gear shaft 814 drives the first bevel gear 816 and the traverse screw 812 to rotate, so that the traverse nut 8121 sleeved on the traverse screw 812 moves, the sample upper plate 32 is driven to move left and right, and the sample upper plate 32 drives the experimental sample to move left and right.
In this embodiment, the longitudinal movement mechanism 82 includes a longitudinal movement support 821 and a longitudinal movement screw 822, the longitudinal movement support 821 is installed on the sample measurement panel 12, the longitudinal movement screw 822 is installed on the longitudinal movement support 821, a longitudinal movement nut 8221 in thread matching with the longitudinal movement screw 822 is sleeved on the longitudinal movement screw 822, the longitudinal movement nut 8221 is fixedly connected with the sample middle plate 31, the longitudinal movement nut 8221 sleeved on the longitudinal movement screw 822 moves by rotating the longitudinal movement screw 822, so as to drive the sample middle plate 31 to move back and forth, the sample middle plate 31 drives the sample upper plate 32 to move back and forth, and the sample upper plate 32 drives the experimental sample to move back and forth. The test specimen is moved in two orthogonal directions in the horizontal plane by operating the traverse mechanism 81 and the longitudinal movement mechanism 82.
In this embodiment, in order to facilitate use, the traverse mechanism 81 further includes a traverse coupling 8153 and a traverse linkage rod 818, one end of the traverse coupling 8153 is fixedly connected to one end of the spline shaft 8152, the other end of the traverse coupling 8153 is fixedly connected to one end of the traverse linkage rod 818, and the other end of the traverse linkage rod 818 is provided with a first bayonet used for installing the traverse outer adjusting button 819.
In this embodiment, in order to facilitate installation of the traverse mechanism 81, the traverse mechanism 81 further includes a traverse fixing plate 8124, a traverse nut clamp 8122, and a traverse nut clamp plate 8123, one end of the traverse fixing plate 8124 is fixedly connected to the sample upper plate 32, the other end of the traverse fixing plate 8124 is fixedly connected to the traverse nut clamp 8122, the traverse nut 8121 is disposed in the traverse nut clamp plate 8123, and the traverse nut clamp plate 8123 is connected to the traverse nut clamp 8122 through a traverse fastening screw 8125. The transverse moving fixing plate 8124, the transverse moving nut clamp 8122 and the transverse moving nut clamp 8123 enable the structure to be compact, and installation and replacement of later-stage parts are convenient.
In this embodiment, the longitudinal movement mechanism 82 further includes a longitudinal movement coupler 823 and a longitudinal movement linkage rod 824, one end of the longitudinal movement coupler 823 is fixedly connected to one end of the longitudinal movement screw 822, the other end of the longitudinal movement coupler 823 is fixedly connected to one end of the longitudinal movement linkage rod 824, the other end of the longitudinal movement linkage rod 824 is provided with a second bayonet, and the second bayonet is used for installing the longitudinal movement outer adjusting button 825.
In this embodiment, the longitudinal moving mechanism 82 further includes a longitudinal moving fixing plate 8224, a longitudinal moving nut clamp 8222 and a longitudinal moving nut clamp plate 8223, one end of the longitudinal moving fixing plate 8224 is fixedly connected to the sample middle plate 31, the other end of the longitudinal moving fixing plate 8224 is fixedly connected to the longitudinal moving nut clamp 8222, the longitudinal moving nut 8221 is disposed in the longitudinal moving nut clamp plate 8223, and the longitudinal moving nut clamp plate 8223 is connected to the longitudinal moving nut clamp 8222 through a longitudinal moving fastening screw 8225. The longitudinal moving fixing plate 8224, the longitudinal moving nut clamp 8222 and the longitudinal moving nut clamp plate 8223 enable the structure to be compact, and installation and later-stage part replacement are convenient.
In this embodiment, in order to facilitate the sliding between the sample middle plate 31 and the sample upper plate 32, the second sliding device is a second cross roller guide rail 33, the second cross roller guide rail 33 is arranged in the left-right direction, one mounting surface of the second cross roller guide rail 33 is fixedly connected with the sample middle plate 31, the other mounting surface of the second cross roller guide rail 33 is fixedly connected with the sample upper plate 32, the second sliding device may also adopt a splicing structure of two linear guide rails, or the sample middle plate 31 is provided with a slide rail, and the sample upper plate 32 is provided with a slide block structure matched with the slide rail to perform the sliding in the left-right direction.
The combined sample box 7 comprises a box body 71 and an experimental sample 72, wherein the box body 71 is cylindrical, the box body 71 is divided into a plurality of fan-shaped positions by taking the circle center of the box body 71 as the center, the size of the experimental sample 72 is matched with the fan-shaped positions, and the experimental sample 72 is fixedly installed in the fan-shaped positions. In physics teaching experiment, often need test different elemental experimental sample 72, for the use of the experimental sample 72 of convenient different elements, combine a plurality of kinds of pure element experimental sample together, for example, combine Ti, Fe, Co, Ni, Cu and Zn for the experiment is more convenient, can take a sample fast, survey appearance and change, has practiced thrift the time, has promoted teaching efficiency, still conveniently manages the experimental sample.
In this embodiment, in order to fix the experimental sample 72 conveniently, one side surface of the experimental sample 72 is connected to the fan-shaped position through the curing adhesive. When the curing glue is used for packaging, one side plane of the curing glue is sealed with glue, the other side plane is a surface for testing, the glue is not covered, and the surface can be marked with the name or element symbols of the experimental sample.
In this embodiment, for the experiment is more convenient, divide into a plurality of fan-shaped position with quota such as box body 71, when experimenting, only need remove fixed angle, can experiment the experimental sample, improve experimental efficiency. In this embodiment, in order to further facilitate the fixing of the experimental sample, the curing adhesive is preferably epoxy resin.
In this embodiment, in order to package the experimental sample 72 conveniently, the cross section of the experimental sample 72 is in a fan shape, the size of the fan shape is the same as that of the fan shape of the box body 71, if the original experimental sample of various elements is in a round cake shape, the original experimental sample is cut into the fan shape, and the fan-shaped elements are combined into a whole circle, and if the original experimental sample is larger or smaller, the original experimental sample is cut into small pieces, placed in one fan shape position of the box body 71, and packaged together with other fan-shaped experimental samples.
The side of the combined sample case 7 having the test sample 72 is placed on the sample upper plate 32 toward the sample middle plate 31. In order to facilitate the placement of the combined sample box 7, the sample upper plate 32 is provided with a sample placement position 322 and a limiting portion 321, the combined sample box 7 is placed on the sample placement position 322, and the limiting portion 321 abuts against the combined sample box 7, so that the combined sample box 7 can be prevented from sliding, and the combined sample box 7 can be placed stably.
In this embodiment, in order to make the combination sample box 7 to place more stably, spacing portion 321 is arc-shaped, and arc-shaped matches with the outside of combination sample box 7, and the length of the arc of spacing portion 321 corresponds with a fan-shaped girth of box body 71, when switching experiment sample 72, switches according to a fan-shaped position of box body 71 for it is more convenient to experiment.
The absorber plate holder 62 is made of brass, two first mounting holes 626 are formed in the absorber plate holder 62, a second mounting hole is formed in the sample panel 12 at a position corresponding to each first mounting hole 626, and a bolt is mounted in the corresponding first mounting hole 626 and the corresponding second mounting hole, that is, the absorber plate holder 62 and the sample panel 12 are fixed together by the bolt.
The absorption sheet holder 62 is provided with a first positioning opening 625, a placing opening 623, a placing cavity 622 and a first ray passage 621, the placing opening 623 and the first ray passage 621 are communicated with the placing cavity 622, the secondary absorption sheet 61 is placed in the placing cavity 622 through the placing opening 623, the lower end of the secondary absorption sheet 61 abuts against the bottom surface of the placing cavity 622, the secondary absorption sheet 61 completely covers the inlet of the first ray passage 621, and the secondary absorption sheet 61 is arranged opposite to the combined sample box 7. The X-ray tube 4 is used for emitting primary X-rays, an emitting port is formed in the X-ray tube 4, the emitting port and the combined sample box 7 are arranged oppositely, the primary X-rays emitted from the emitting port irradiate the experimental sample 72 placed on the combined sample box 7, the experimental sample 72 generates X-ray fluorescence after being irradiated by the primary X-rays, the X-ray fluorescence enters the first ray channel 621 after being absorbed by the secondary absorption sheet 61, and the secondary absorption sheet 61 can be replaced at any time according to experiment needs.
The first positioning opening 625 is used for clamping the detector 6, the detector 6 is arranged at an outlet of the first ray channel 621, the upper portion of the detector 6 is clamped in the first positioning opening 625, the detector 6 is used for detecting X-ray fluorescence generated after the experimental sample 72 is irradiated by primary X-rays, the X-ray fluorescence enters the detector 6 after passing through the first ray channel 621, a detection head is arranged on the detector 6, the secondary absorption sheet 61 covers the detection head, and the X-ray fluorescence enters the detector 6 through the detection head. In order to facilitate the installation and connection between the detector 6 and the sample measurement panel 12, the sample measurement panel 12 is provided with a second positioning opening 122, and the detector 6 is also clamped in the second positioning opening 122, so that the installation of the detector 6 is more stable. The camera shooting mechanism and the combined sample box 7 are arranged oppositely, the camera shooting mechanism is located below the combined sample box 7 and located above the sample measurement panel 12, the camera shooting mechanism comprises a reflective mirror 91, a camera 92 and a camera seat 93, the camera seat 93 is installed on the sample measurement panel 12, the sample measurement panel 12 and the camera seat 93 are installed through bolts, the camera 92 is installed on the camera seat 93, the camera 92 and the camera seat 93 are installed through bolts, and the camera 92 is used for collecting image information of the experimental sample 72. In order to collect the image information of the experimental sample 72 conveniently, a reflector frame 624 is further arranged on the absorption sheet seat 62, a reflector 91 is adhered to the reflector frame 624, the reflector 91 is arranged opposite to the experimental sample 72, in this embodiment, a mirror surface of the reflector 91 and a horizontal plane of the combined sample box 7 form a forty-five degree angle, and the reflector 91 reflects the image information of the experimental sample 72 to the camera 92. The camera 92 is disposed opposite to the reflective mirror 91, in this embodiment, a mirror surface of the reflective mirror 91 forms a forty-five degree angle with an axis of the camera 92, and the camera 92 is disposed corresponding to a central position of the reflective mirror 91. The reflecting mirror 91 is made of aluminum foil, can reflect visible light, and has high transmittance for X-rays. In the present embodiment, the secondary absorption sheet 61 is disposed in parallel with the mirror 91.
In order to make the primary X-ray pass through the sample panel 12 smoothly, a second ray channel 121 is disposed on the sample panel 12, and an outlet of the second ray channel 121 is disposed opposite to the experimental sample 72. The X-ray tube 4 is installed below the sample measuring panel 12, and primary X-rays emitted from the X-ray tube 4 can pass through the second radiation passage 121.
In order to enhance the irradiation effect of the primary X-ray on the experimental sample 72, a collimating unit 42 is installed on the sample-measuring panel 12 at a position corresponding to the second ray channel 121, a third ray channel 421 is provided inside the collimating unit 42, and the third ray channel 421 is communicated with the second ray channel 121. The collimating unit 42 is used for regulating and limiting the X-ray passing, the primary absorption sheet 41 can be placed on the collimating unit 42, and the primary absorption sheet 41 can be replaced at any time according to the experimental requirement.
When the experiment is carried out, the combined sample box 7 is firstly placed on the sample placing position 322 of the sample upper plate 32, then the secondary absorption sheet 61 is placed in the placing cavity 622 through the placing opening 623 of the absorption sheet seat 62, the sampling door 22, the front door 11 and the side door 13 are closed, then the X-ray tube 4 is opened, the primary X-ray emitted by the X-ray tube 4 sequentially passes through the second ray channel 121 and the third ray channel 421, the primary X-ray sequentially passes through the primary absorption sheet 41 and the reflective mirror 91 after passing through the third ray channel 421, the primary X-ray penetrating through the reflective mirror 91 irradiates the experimental sample 72, the experimental sample 72 is excited to emit X-ray fluorescence, the X-ray fluorescence penetrates through the secondary absorption sheet 61, the secondary absorption sheet 61 absorbs the X-ray fluorescence, the X-ray fluorescence penetrates through the secondary absorption sheet 61 and then enters the first ray channel 621, the X-ray fluorescence passing through the first ray channel finally enters the detector 6, the detector 6 is capable of measuring the intensity of the received X-ray fluorescence. During the experiment, the reflective mirror 91 reflects the image information of the experimental sample 72 to the camera 92.
The X-ray tube 4 is turned off, the thickness of the secondary absorption sheet 61 made of the same material is changed, the secondary absorption sheet 61 is replaced, the above experiment is repeated, the intensity of the X-ray fluorescence received by the detector 6 and absorbed by the secondary absorption sheet 61 is changed, and the "absorption coefficient" of the material composing the secondary absorption sheet to the X-ray is calculated by the formula.
During the experiment, the outer adjusting button 819 can be adjusted to move in a lateral direction and the outer adjusting button 825 can be adjusted to move in a longitudinal direction to precisely position the region to be analyzed on the surface of the test specimen 72.
In conclusion, the X-ray fluorescence spectrometer can be used for analyzing material components, testing the absorption coefficient of a material to X-rays, rapidly replacing the secondary absorption sheet, rapidly replacing an experimental sample, accurately positioning an area to be analyzed on the surface of the experimental sample, and is safe and efficient to operate.
Claims (10)
1. An X-ray fluorescence spectrometer with a teaching function is characterized in that: the spectrometer comprises a sample measuring panel (12), a sample table (3) capable of being positioned, an X-ray tube (4), a camera shooting mechanism, a secondary absorption sheet (61), an absorption sheet seat (62), a detector (6), a combined sample box (7) and a shell, wherein a mounting cavity is arranged inside the shell, the sample measuring panel (12), the sample table (3) capable of being positioned, the X-ray tube (4), the camera shooting mechanism, the secondary absorption sheet (61), the absorption sheet seat (62), the detector (6) and the combined sample box (7) are arranged in the mounting cavity, a sampling door (22) and an outer adjusting button are arranged on the shell, the outer adjusting button is connected with the sample table (3) capable of being positioned, the sample table (3) capable of being positioned is arranged on the sample measuring panel (12) through a first sliding device, the combined sample box (7) is arranged on the sample table (3) capable of being positioned, the absorption sheet seat (62) is installed on the sample measuring panel (12), the secondary absorption sheet (61) is installed on the absorption sheet seat (62), an emission port is formed in the X-ray tube (4), the emission port, the camera shooting mechanism and the secondary absorption sheet (61) are arranged opposite to the combined sample box (7), a detection head is arranged on the detector (6), and the secondary absorption sheet (61) covers the detection head.
2. The X-ray fluorescence spectrometer with teaching function as claimed in claim 1, wherein: the absorption sheet seat (62) is provided with a placing opening (623) and a placing cavity (622), the secondary absorption sheet (61) is placed in the placing cavity (622) through the placing opening (623), the absorption sheet seat (62) is further provided with a first ray channel (621), the first ray channel (621) is communicated with the placing cavity (622), the secondary absorption sheet (61) covers an inlet of the first ray channel (621), and the detection head is arranged at an outlet of the first ray channel (621).
3. The X-ray fluorescence spectrometer with teaching function as claimed in claim 1, wherein: the sample table (3) capable of positioning comprises a sample middle plate (31), a sample upper plate (32), a transverse moving mechanism (81) and a longitudinal moving mechanism (82), the longitudinal moving mechanism (82) is arranged on the sample measuring panel (12), the longitudinal moving mechanism (82) is fixedly connected with the sample middle plate (31), the longitudinal moving mechanism (82) drives the sample middle plate (31) to move in the front-back direction relative to the sample measuring panel (12), the sample upper plate (32) is mounted on the sample middle plate (31) through a second sliding device, the transverse moving mechanism (81) is arranged on the sample middle plate (31), the transverse moving mechanism (81) is fixedly connected with the sample upper plate (32), the transverse moving mechanism (81) drives the sample upper plate (32) to move in the left-right direction relative to the sample middle plate (31), the combined sample box (7) is mounted on the sample upper plate (32).
4. The X-ray fluorescence spectrometer with teaching function as claimed in claim 1, wherein: the combined sample box (7) comprises a box body (71) and an experimental sample (72), wherein the box body (71) is cylindrical, the box body (71) is divided into a plurality of fan-shaped positions by taking the circle center of the box body (71) as the center, the size of the experimental sample (72) is matched with the fan-shaped positions, and the experimental sample (72) is fixedly installed in the fan-shaped positions.
5. An X-ray fluorescence spectrometer with teaching function as claimed in claim 3, wherein: indulge and move mechanism (82) including indulging move support (821), indulge and move screw rod (822), indulge and move shaft coupling (823) and indulge and move gangbar (824), indulge move support (821) and install survey appearance panel (12) on, indulge and move screw rod (822) and install indulge on moving support (821), indulge move on screw rod (822) the cover be equipped with indulge move screw rod (822) screw thread assorted indulge move nut (8221), indulge move nut (8221) with sample medium plate (31) fixed connection, indulge move shaft coupling (823) one end with indulge move screw rod (822) one end fixed connection, indulge move the other end of shaft coupling (823) with indulge move gangbar (824) one end fixed connection.
6. An X-ray fluorescence spectrometer with teaching function as claimed in claim 3, wherein: the transverse moving mechanism (81) comprises a transverse moving support (811), a transverse moving screw rod (812), a bevel gear frame (813), a bevel gear shaft (814), a transmission connecting sleeve (815), a transverse moving coupler (8153) and a transverse moving linkage rod (818), the transverse moving support (811) and the bevel gear frame (813) are installed on the sample middle plate (31), the transverse moving screw rod (812) is installed on the transverse moving support (811), a transverse moving nut (8121) matched with the transverse moving screw rod (812) in a threaded mode is sleeved on the transverse moving screw rod (812), the transverse moving nut (8121) is fixedly connected with the sample upper plate (32), the bevel gear shaft (814) is installed on the bevel gear frame (813), the transverse moving screw rod (812) and the bevel gear shaft (814) are vertically arranged, and a first bevel gear (816) is arranged at one end, facing the bevel gear shaft (814), of the transverse moving screw rod (812), the bevel gear shaft (814) is provided with a second bevel gear (817) matched with the first bevel gear (816), the first bevel gear (816) is meshed with the second bevel gear (817), the fixed end of the bevel gear shaft (814) is fixedly connected with the transmission connecting sleeve (815), a spline cylinder (8151) is arranged in the transmission connecting sleeve (815), a spline shaft (8152) is arranged in the spline cylinder (8151), the spline shaft (8152) can slide in the spline cylinder (8151), one end of the transverse moving coupler (8153) is fixedly connected with one end of the spline shaft (8152), and the other end of the transverse moving coupler (8153) is fixedly connected with one end of the transverse moving linkage rod (818).
7. The X-ray fluorescence spectrometer with teaching function as claimed in claim 4, wherein: the box body (71) is divided into a plurality of fan-shaped positions in equal amount, the experimental sample (72) is fan-shaped in cross section, and one side of the experimental sample (72) is connected with the fan-shaped positions through curing glue.
8. The X-ray fluorescence spectrometer with teaching function as claimed in claim 1, wherein: the camera shooting mechanism comprises a reflective mirror (91), a camera (92) and a camera head seat (93), the camera head seat (93) is installed on the sample measuring panel (12), the camera (92) is installed on the camera head seat (93), the reflective mirror (91) is installed on the absorbing sheet seat (62), the reflective mirror (91) is arranged opposite to the sample platform (3) which can be positioned, and the camera (92) is arranged opposite to the reflective mirror (91).
9. The X-ray fluorescence spectrometer with teaching function as claimed in claim 1, wherein: the sample measuring panel (12) is provided with a second ray channel (121), the second ray channel (121) and the emission port are arranged oppositely, the sample measuring panel (12) is further provided with a collimation unit (42), a third ray channel (421) is arranged inside the collimation unit (42), and the third ray channel (421) is communicated with the second ray channel (121).
10. An X-ray fluorescence spectrometer with instructional function as in claim 3 wherein: the first sliding device is a first crossed roller guide rail (34), one mounting surface of the first crossed roller guide rail (34) is fixedly connected with the sample middle plate (31), the other mounting surface of the first crossed roller guide rail (34) is fixedly connected with the sample measuring panel (12), the second sliding device is a second crossed roller guide rail (33), one mounting surface of the second crossed roller guide rail (33) is fixedly connected with the sample upper plate (32), and the other mounting surface of the second crossed roller guide rail (33) is fixedly connected with the sample middle plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122806817.6U CN216747502U (en) | 2021-11-16 | 2021-11-16 | X-ray fluorescence spectrometer with teaching function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122806817.6U CN216747502U (en) | 2021-11-16 | 2021-11-16 | X-ray fluorescence spectrometer with teaching function |
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| CN216747502U true CN216747502U (en) | 2022-06-14 |
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| CN202122806817.6U Active CN216747502U (en) | 2021-11-16 | 2021-11-16 | X-ray fluorescence spectrometer with teaching function |
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Address after: A422, Building 1, Hongpai Industrial Park, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China (Building A, Huafeng Zhigu Fuhai Science and Technology Industrial Park) Patentee after: SHENZHEN HELEEX ANALYTICAL INSTRUMENT Co.,Ltd. Address before: 518000 308 apartment building, Funing hi tech Industrial Park, Fuyong street, Bao'an District, Shenzhen, Guangdong Patentee before: SHENZHEN HELEEX ANALYTICAL INSTRUMENT Co.,Ltd. |